lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date:   Thu, 24 Dec 2020 16:42:32 +0800
From:   Turritopsis Dohrnii Teo En Ming <ceo@...-en-ming.com>
To:     linux-kernel@...r.kernel.org
Cc:     ceo@...-en-ming-corp.com
Subject: Teo En Ming's Guide to Configuring Asterisk/FreePBX with Cisco 7960
 IP Phones

Subject: Teo En Ming's Guide to Configuring Asterisk/FreePBX with Cisco 
7960 IP Phones

Author: Mr. Turritopsis Dohrnii Teo En Ming (TARGETED INDIVIDUAL)

Country: Singapore

Date: 24 December 2020 Thursday Singapore Time

Type of Publication: Plain Text

Document version: 20201224.01

======================================================================================================================================================================

System Information
==================

My Asterisk version: 16.13.0
My FreePBX version: 15.0.16.81

On 7 December 2020, I was able to get Bria softphone to work with my 
Asterisk PBX server successfully (PJSIP extension).

On 19 December 2020, I bought a refurbished Cisco CP-7960G IP hardphone 
for SGD$30 in Singapore.

TFTP works. My DHCP server in my pfSense firewall applaince is able to 
assign my Cisco 7960 IP phone with an IP address with DHCP option 66 
(TFTP server). My Cisco 7960 IP phone is able to connect to my TFTP 
server on my Asterisk PBX appliance and download firmware and 
configuration files successfully.

On 24 December 2020 Thursday Christmas Eve, I have finally managed to 
get my Cisco 7960 IP phone to register on my Asterisk PBX server 
***successfully***.

This is an ***OLD AND OUTDATED*** video of my Cisco 7960 IP phone:

https://www.youtube.com/watch?v=ip_F08jmmio

I will publish new and updated Youtube video of my Cisco 7960 IP phone 
***in the future***.

BEGINNING OF THIS GUIDE
=======================

Reference Guide: Configure Asterisk with Cisco IP Phones
Link: http://docshare02.docshare.tips/files/6706/67061980.pdf

SECTION 1: INSTALLING TFTP SERVER ON ASTERISK PBX APPLIANCE
===========================================================

Putty/ssh into Teo En Ming's Asterisk VoIP IP PBX SIP Server at 
192.168.1.9.

# yum install tftp-server

Package tftp-server-5.2-23.8.sng7.x86_64 already installed and latest 
version

# chkconfig xinetd on

# chkconfig tftp on

# systemctl start tftp.service

# ps -ef | grep tftp
root      3424     1  0 11:17 ?        00:00:00 /usr/sbin/in.tftpd -s 
/tftpboot

SECTION 2: DOWNLOADING CISCO 7960 IP PHONE SIP FIRMWARE
=======================================================

# cd /tftpboot

# wget 
http://www.firewall.cx/downloads/cisco-tools-a-applications/cisco-ip-phone-a-ata-firmware-downloads/107-7940-a-7960-ip-phone-sccp-a-sip/file.html

# mv file.html file.zip

# unzip file.zip

# cd 7940_7960/

# cd SIP/

# tar -xf P0S3-8-12-00.tar

# rm P0S3-8-12-00.tar

# mv * /tftpboot/

# cd /tftpboot/

[root@...epbx tftpboot]# ls
7940_7960  file.zip  OS79XX.TXT  P003-8-12-00.bin  P003-8-12-00.sbn  
P0S3-8-12-00.loads  P0S3-8-12-00.sb2

SECTION 3: CREATING CISCO 7960 IP PHONE CONFIGURATION FILES
===========================================================

# nano OS79XX.TXT (Create configuration file)
=============================================

P003-8-12-00

# nano XMLDefault.cnf.xml (Create configuration file)
=====================================================

<Default>
<callManagerGroup>
  <members>
  <member priority="0">
  <callManager>
  <ports>
  <ethernetPhonePort>2000</ethernetPhonePort>
  <mgcpPorts>
  <listen>2427</listen>
  <keepAlive>2428</keepAlive>
  </mgcpPorts>
  </ports>
  <processNodeName></processNodeName>
  </callManager>
  </member>
  </members>
  </callManagerGroup>
<loadInformation8 model="IP Phone 7940">P0S3-8-12-00</loadInformation8>
<loadInformation7 model="IP Phone 7960">P0S3-8-12-00</loadInformation7>
<loadInformation435 model="Cisco 7945">SIP45.8-4-2S</loadInformation435>
<loadInformation436 model=”Cisco 7965”>SIP45.8-4-2S</loadInformation436>
<loadInformation30006 model="IP Phone 
7970">SIP70.8-0-3S</loadInformation30006>
<authenticationURL></authenticationURL>
<directoryURL></directoryURL>
<idleURL></idleURL>
<informationURL></informationURL>
<messagesURL></messagesURL>
<servicesURL></servicesURL>
</Default>

# nano SIPDefault.cnf (Create configuration file)
=================================================

image_version: "P0S3-8-12-00"
proxy1_address: "192.168.1.9"
# proxy2_address: "xxx.xxx.xxx.xxx"
# proxy3_address: "xxx.xxx.xxx.xxx"
# proxy4_address: "xxx.xxx.xxx.xxx"

# Proxy Server Port
proxy1_port:"5060"
# proxy2_port:"5060"
# proxy3_port:"5060"
# proxy4_port:"5060"
proxy_emergency: ""
proxy_emergency_port: "5060"
proxy_backup: ""
proxy_backup_port: "5060"
outbound_proxy: ""
outbound_proxy_port: "5060"

nat_enable: "0"
nat_address: ""
voip_control_port: "5060"
start_media_port: "16348"
end_media_port: "20134"
nat_received_processing: "1"
dyn_dns_addr_1: ""
dyn_dns_addr_2: ""
dyn_tftp_addr: "192.168.1.9"
tftp_cfg_dir: "./"
proxy_register: "1"
timer_register_expires: "120"
preferred_codec: "none"
tos_media: "5"
enable_vad: "0"
dial_template: "dialplan"
network_media_type: "auto"
autocomplete: "1"
telnet_level: "2"
cnf_join_enable: "1"
semi_attended_transfer: "0"
call_waiting: "1"
anonymous_call_block: "0"
callerid_blocking: "0"
dnd_control: "0"
dtmf_inband: "1"
dtmf_outofband: "avt"
dtmf_db_level: "3"
dtmf_avt_payload: "101"
timer_t1: "500"
timer_t2: "4000"
sip_retx: "10"
sip_invite_retx: "6"
timer_invite_expires: "180"

sntp_mode: "directedbroadcast"
sntp_server: "time-a-g.nist.gov"
time_zone: "8"
time_format_24hr: "0"
dst_offset: "0"
dst_start_month: "April"
dst_start_day: ""
dst_start_day_of_week: "Sun"
dst_start_week_of_month: "1"
dst_start_time: "2"
dst_stop_month: "Nov"
dst_stop_day: "1"

dst_stop_day_of_week: "Sunday"
dst_stop_week_of_month: ""
dst_stop_time: "2"
dst_auto_adjust: "1"

messages_uri: "*99"
services_url: "http://example.domain.ext/services/menu.xml"
directory_url: "http://example.domain.ext/services/directory.php"
logo_url: "http://example.domain.ext/imagename.bmp"
http_proxy_addr: ""
http_proxy_port: ""
remote_party_id: 0

# nano dialplan.xml (Create configuration file)
===============================================

<DIALTEMPLATE>
  <TEMPLATE MATCH="*" Timeout="5"/> <!-- Anything else -->
</DIALTEMPLATE>

# nano RINGLIST.DAT (Create configuration file)
===============================================

FlintPhone FlintPhone.raw
HarpSynth HarpSynth.raw
Jamaica Jamaica.raw
Klaxons Klaxons.raw
KotoEffect KotoEffect.raw
MusicBox MusicBox.raw
Ohno Ohno.raw
Piano 1 Piano1.raw
Piano 2 Piano2.raw

# nano SEP000E84C060A6.cnf.xml (Create configuration file)
==========================================================

<device>
<deviceProtocol>SIP</deviceProtocol>
<loadInformation model="IP Phone 7960">P0S3-8-12-00</loadInformation>
</device>

# nano SIP000E84C060A6.cnf (Create configuration file)
=======================================================

proxy1_address: "192.168.1.9"
proxy2_address: "xxx.xxx.xxx.xxx"
proxy3_address: "xxx.xxx.xxx.xxx"
proxy4_address: "xxx.xxx.xxx.xxx"
line1_name: "1600"
line1_shortname: "TEO EN MING"
line1_displayname: "TURRITOPSIS DOHRNII TEO EN MING"
line1_authname: "1600"
line1_password: "IP Phone Extension Password"
line2_name: ""
line2_shortname: ""
line2_displayname: ""
line2_authname: "UNPROVISIONED"
line2_password: "UNPROVISIONED"
line3_name: ""
line3_shortname: ""
line3_displayname: ""
line3_authname: "UNPROVISIONED"
line3_password: "UNPROVISIONED"
line4_name: ""
line4_shortname:
line4_displayname: ""
line4_authname: "UNPROVISIONED"
line4_password: "UNPROVISIONED"
line5_name: ""
line5_shortname: ""
line5_displayname: ""
line5_authname: "UNPROVISIONED"
line5_password: "UNPROVISIONED"
line6_name: ""
line6_shortname: ""
line6_displayname: ""
line6_authname: "UNPROVISIONED"
line6_password: "UNPROVISIONED"
proxy_emergency: ""
proxy_emergency_port: "5060"
proxy_backup: ""
proxy_backup_port: "5060"
outbound_proxy: ""
outbound_proxy_port: "5060"
nat_enable: "0"
nat_address: ""
voip_control_port: "5060"
start_media_port: "16348"
end_media_port: "20134"
nat_received_processing: "0"
phone_label: "TEO EN MING CORP "
time_zone: 8
logo_url: "http://domain.ext/imagefile.bmp"
telnet_level: "2"
phone_prompt: "Cisco7960"
phone_password: "password"
enable_vad: "0"
network_media_type: "auto"
user_info: phone

SECTION 4: GETTING TFTP SERVER TO START AUTOMATICALLY UPON EVERY BOOT
=====================================================================

# systemctl enable tftp

# systemctl start tftp

[root@...epbx ~]# ps -ef | grep tftp
root      4097     1  0 02:24 ?        00:00:00 /usr/sbin/in.tftpd -s 
/tftpboot

SECTION 5: CONFIGURING PFSENSE FIREWALL'S DHCP SERVER WITH DHCP OPTION 
66 (TFTP SERVER)
=======================================================================================

Reference Guide: Chapter: Getting Started With Your Cisco SIP IP Phone 
(Version 3.0)
Link: 
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/7960g_7940g/sip/3_0/english/administration/guide/ver3_0/install.html

[QUOTE]

Configuring Network Parameters
==============================

Note This section describes how to configure the basic network 
parameters that are required for the phone to operate on the network. 
For a complete list of the network parameters that you can configure, 
see the "Modifying the Phone's Network Settings" section.

The network parameters include those parameters that must be configured 
on a phone for the phone to operate in an IP network. You can configure 
the required network parameters via DHCP or manually configure them 
after you have connected the phone to a power supply.

The following parameters must be defined for your phone to establish 
network connectivity:

•Phone's IP address

•Subnet mask

•Default gateway for the subnet (use "0.0.0.0" if not required)

•Domain name

•DNS server IP address (use "0.0.0.0" if not required)

•TFTP server IP address

When configuring the network parameters of an IP phone, adhere to the 
following guidelines:

•Use 0.0.0.0 for unused IP addresses.

•You can use 0.0.0.0 for the subnet mask only if the default gateway is 
also 0.0.0.0.

•The TFTP server must have a nonzero IP address.

•The default gateway must be on the same subnet as the phone.

•The default gateway can be 0.0.0.0 only if the TFTP or DNS server is on 
the same subnet as the phone.


Note By default, DHCP is enabled on your phone. Before you can manually 
configure the network parameters, you must disable DHCP after connecting 
your phone to a power supply.

Configuring Network Parameters via a DHCP Server
================================================

If you are using DHCP to configure the network parameters, configure the 
following DHCP options on your DHCP server before you connect your Cisco 
SIP IP phone:

•dhcp option #50 (IP address)

•dhcp option #1 (IP subnet mask)

•dhcp option #3 (Default IP gateway)

•dhcp option #15 (Domain name)

•dhcp option #6 (DNS server IP address)

•dhcp option #66 (TFTP server IP address)

[/QUOTE]

Reference Guide: pfSense Firewall DHCPv4 Server
Link: https://docs.netgate.com/pfsense/en/latest/services/dhcp/ipv4.html

Login to Teo En Ming's pfSense firewall appliance.

Click Services > DHCP Server.

At TFTP, click Display Advanced.

TFTP Server: 192.168.1.9

Please remember to click Save.

Then click Restart Service. You must restart the DHCP server for the 
changes to take effect.

SECTION 6: PERFORM FACTORY RESET ON CISCO 7960 IP PHONE
=======================================================

Because I bought an used Cisco 7960 IP phone, I must factory reset it to 
clear all previous owner's settings.

Reference Guide: Reset 7900 Series IP Phones if Password is Set
Link: 
https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-ip-phone-7900-series/15254-7960-default.html

[QUOTE]

Reset the 7940 and 7960 IP Phones to the Factory Default
=========================================================

In order to perform a factory reset of a phone if the password is set, 
complete these steps:

Unplug the power cable from the phone, and then plug in the cable again.

The phone begins its power up cycle.

Immediately press and hold # and while the Headset, Mute, and Speaker 
buttons begin to flash in sequence, release #.

The Headset, Mute, and Speaker buttons flash in sequence in order to 
indicate that the phone waits for you to enter the key sequence for the 
reset.

Press 123456789*0# within 60 seconds after the Headset, Mute, and 
Speaker buttons begin to flash.

If you repeat a key within the sequence, for example, if you press 
1223456789*0#, the sequence is still accepted and the phone resets.

If you do not complete this key sequence or do not press any keys, after 
60 seconds, the Headset, Mute, and Speaker buttons no longer flash, and 
the phone continues with its normal startup process. The phone does not 
reset.

If you enter an invalid key sequence, the buttons no longer flash, and 
the phone continues with its normal startup process. The phone does not 
reset.

If you enter this key sequence correctly, the phone displays this 
prompt:

Keep network cfg? 1 = yes 2 = no

In order to maintain the current network configuration settings for the 
phone when the phone resets, press 1. In order to reset the network 
configuration settings when the phone resets, press 2.

If you press another key or do not respond to this prompt within 60 
seconds, the phone continues with its normal startup process and does 
not reset. Otherwise, the phone goes through the factory reset process.

[/QUOTE]

SECTION 7: TEMPORARILY DISABLE FREEPBX FIREWALL TO TEST TFTP CONNECTION
=======================================================================

Reference Guide: Firewall Command Line
Link: https://wiki.freepbx.org/display/FPG/Firewall+Command+Line

# fwconsole firewall disable

[root@...epbx ~]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

[root@...epbx ~]# iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT

[root@...epbx ~]# tail -f /var/log/messages

Dec 20 03:24:42 freepbx systemd: Started Tftp Server.
Dec 20 03:25:25 freepbx xinetd[939]: START: tftp pid=8213 
from=192.168.1.130
Dec 20 03:25:25 freepbx in.tftpd[8214]: RRQ from 192.168.1.130 filename 
CTLSEP000E84C060A6.tlv
Dec 20 03:25:25 freepbx in.tftpd[8214]: Client 192.168.1.130 File not 
found CTLSEP000E84C060A6.tlv
Dec 20 03:25:25 freepbx in.tftpd[8215]: RRQ from 192.168.1.130 filename 
SEP000E84C060A6.cnf.xml
Dec 20 03:25:25 freepbx in.tftpd[8215]: Client 192.168.1.130 finished 
SEP000E84C060A6.cnf.xml
Dec 20 03:25:25 freepbx in.tftpd[8216]: RRQ from 192.168.1.130 filename 
P0S3-8-12-00.loads
Dec 20 03:25:25 freepbx in.tftpd[8216]: Client 192.168.1.130 finished 
P0S3-8-12-00.loads
Dec 20 03:25:49 freepbx in.tftpd[8217]: RRQ from 192.168.1.130 filename 
SIPDefault.cnf
Dec 20 03:25:49 freepbx in.tftpd[8217]: Client 192.168.1.130 finished 
SIPDefault.cnf
Dec 20 03:25:49 freepbx in.tftpd[8218]: RRQ from 192.168.1.130 filename 
./SIP000E84C060A6.cnf
Dec 20 03:25:49 freepbx in.tftpd[8218]: Client 192.168.1.130 finished 
./SIP000E84C060A6.cnf
Dec 20 03:25:51 freepbx in.tftpd[8219]: RRQ from 192.168.1.130 filename 
RINGLIST.DAT
Dec 20 03:25:51 freepbx in.tftpd[8220]: RRQ from 192.168.1.130 filename 
dialplan.xml
Dec 20 03:25:51 freepbx in.tftpd[8219]: Client 192.168.1.130 finished 
RINGLIST.DAT
Dec 20 03:25:51 freepbx in.tftpd[8220]: Client 192.168.1.130 finished 
dialplan.xml

SECTION 8: ENABLE AND START THE FREEPBX FIREWALL FOR PRODUCTION USE
===================================================================

[root@...epbx ~]# fwconsole firewall start
Enabling Firewall.
[root@...epbx ~]#
Broadcast message from root@...epbx.sangoma.local (Sun Dec 20 03:37:45 
2020):

Firewall service now starting.

# iptables -L

# iptables -S

Login to FreePBX Dashboard.

Please check the following item:

System Firewall: Firewall Active

Power off and then power on the Cisco 7960 IP Phone.

[root@...epbx ~]# tail -f /var/log/messages
Dec 20 03:42:27 freepbx xinetd[939]: START: tftp pid=10209 
from=192.168.1.130
Dec 20 03:42:27 freepbx in.tftpd[10210]: RRQ from 192.168.1.130 filename 
CTLSEP000E84C060A6.tlv
Dec 20 03:42:27 freepbx in.tftpd[10210]: Client 192.168.1.130 File not 
found CTLSEP000E84C060A6.tlv
Dec 20 03:42:28 freepbx in.tftpd[10211]: RRQ from 192.168.1.130 filename 
SEP000E84C060A6.cnf.xml
Dec 20 03:42:28 freepbx in.tftpd[10211]: Client 192.168.1.130 finished 
SEP000E84C060A6.cnf.xml
Dec 20 03:42:28 freepbx in.tftpd[10212]: RRQ from 192.168.1.130 filename 
P0S3-8-12-00.loads
Dec 20 03:42:28 freepbx in.tftpd[10212]: Client 192.168.1.130 finished 
P0S3-8-12-00.loads
Dec 20 03:42:51 freepbx in.tftpd[10286]: RRQ from 192.168.1.130 filename 
SIPDefault.cnf
Dec 20 03:42:51 freepbx in.tftpd[10286]: Client 192.168.1.130 finished 
SIPDefault.cnf
Dec 20 03:42:52 freepbx in.tftpd[10287]: RRQ from 192.168.1.130 filename 
./SIP000E84C060A6.cnf
Dec 20 03:42:52 freepbx in.tftpd[10287]: Client 192.168.1.130 finished 
./SIP000E84C060A6.cnf
Dec 20 03:42:53 freepbx in.tftpd[10288]: RRQ from 192.168.1.130 filename 
RINGLIST.DAT
Dec 20 03:42:53 freepbx in.tftpd[10288]: Client 192.168.1.130 finished 
RINGLIST.DAT
Dec 20 03:42:53 freepbx in.tftpd[10289]: RRQ from 192.168.1.130 filename 
dialplan.xml
Dec 20 03:42:53 freepbx in.tftpd[10289]: Client 192.168.1.130 finished 
dialplan.xml

SECTION 9: ASTERISK CLI TROUBLESHOOTING COMMANDS
================================================

# asterisk -vvvr

sip set debug on

sip show peers
Name/username             Host                                    Dyn 
Forcerport Comedia    ACL Port     Status      Description
didlogic/60751            107.6.123.181                               
Yes        Yes            5060     OK (7 ms)
1 sip peers [Monitored: 1 online, 0 offline Unmonitored: 0 online, 0 
offline]

SECTION 10: ASTERISK PBX SERVER DEBUGGING OUTPUT
================================================

# asterisk -vvvr

freepbx*CLI> sip set debug on

freepbx*CLI>
[2020-12-20 07:06:22] NOTICE[2366]: chan_sip.c:15893 sip_reregister:    
-- Re-registration for  60751@....sg.didlogic.net
REGISTER 12 headers, 0 lines
Reliably Transmitting (NAT) to 107.6.123.181:5060:
REGISTER sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK3f11a8b8;rport
Max-Forwards: 70
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: <sip:60751@....sg.didlogic.net>
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 165 REGISTER
Supported: replaces, timer
User-Agent: FPBX-15.0.16.81(16.13.0)
Authorization: Digest username="60751", realm="sip.sg.didlogic.net", 
algorithm=MD5, uri="sip:sip.sg.didlogic.net", 
nonce="X974SF/e9xyVB6XKqpfatDHcb8chw9fPak+Ke4A=", 
response="bfadacdd4e745fd4b9e12046e6ce2afc", qop=auth, 
cnonce="2b1b6d13", nc=00000003
Expires: 120
Contact: <sip:6531590313@....168.1.9:5160>
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK3f11a8b8;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: 
<sip:60751@....sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.4d21
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 165 REGISTER
Contact: <sip:6531590313@<CORPORATE OFFICE PUBLIC 
IP>:26462>;expires=120;received="sip:<CORPORATE OFFICE PUBLIC IP>:26462"
Content-Length: 0

<------------->
--- (8 headers 0 lines) ---
[2020-12-20 07:06:22] NOTICE[2366]: chan_sip.c:24961 
handle_response_register: Outbound Registration: Expiry for 
sip.sg.didlogic.net is 120 sec (Scheduling reregistration in 105 s)
Really destroying SIP dialog 
'005dbc8238e06ac421ef613a3b55e134@....0.0.1' Method: REGISTER

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->
Reliably Transmitting (NAT) to 107.6.123.181:5060:
OPTIONS sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK51105854;rport
Max-Forwards: 70
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as41ddf4a6
To: <sip:sip.sg.didlogic.net>
Contact: <sip:60751@....168.1.9:5160>
Call-ID: 0b0605df4f4ca7b03402c9fd5a869606@....168.1.9:5160
CSeq: 102 OPTIONS
User-Agent: FPBX-15.0.16.81(16.13.0)
Date: Sun, 20 Dec 2020 07:07:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, 
INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK51105854;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as41ddf4a6
To: <sip:sip.sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.f924
Call-ID: 0b0605df4f4ca7b03402c9fd5a869606@....168.1.9:5160
CSeq: 102 OPTIONS
Content-Length: 0

<------------->
--- (7 headers 0 lines) ---
Really destroying SIP dialog 
'0b0605df4f4ca7b03402c9fd5a869606@....168.1.9:5160' Method: OPTIONS

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->
Reliably Transmitting (NAT) to 107.6.123.181:5060:
OPTIONS sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK4ff08179;rport
Max-Forwards: 70
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as004073f3
To: <sip:sip.sg.didlogic.net>
Contact: <sip:60751@....168.1.9:5160>
Call-ID: 500c8eb32071e3fc462be80f243d38fc@....168.1.9:5160
CSeq: 102 OPTIONS
User-Agent: FPBX-15.0.16.81(16.13.0)
Date: Sun, 20 Dec 2020 07:08:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, 
INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK4ff08179;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as004073f3
To: <sip:sip.sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.385d
Call-ID: 500c8eb32071e3fc462be80f243d38fc@....168.1.9:5160
CSeq: 102 OPTIONS
Content-Length: 0

<------------->
--- (7 headers 0 lines) ---
Really destroying SIP dialog 
'500c8eb32071e3fc462be80f243d38fc@....168.1.9:5160' Method: OPTIONS
[2020-12-20 07:08:07] NOTICE[2366]: chan_sip.c:15893 sip_reregister:    
-- Re-registration for  60751@....sg.didlogic.net
REGISTER 12 headers, 0 lines
Reliably Transmitting (NAT) to 107.6.123.181:5060:
REGISTER sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK6d85e46f;rport
Max-Forwards: 70
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: <sip:60751@....sg.didlogic.net>
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 166 REGISTER
Supported: replaces, timer
User-Agent: FPBX-15.0.16.81(16.13.0)
Authorization: Digest username="60751", realm="sip.sg.didlogic.net", 
algorithm=MD5, uri="sip:sip.sg.didlogic.net", 
nonce="X974SF/e9xyVB6XKqpfatDHcb8chw9fPak+Ke4A=", 
response="074f1f037639144de751dc9231c191c9", qop=auth, 
cnonce="6eb58a86", nc=00000004
Expires: 120
Contact: <sip:6531590313@....168.1.9:5160>
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK6d85e46f;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: 
<sip:60751@....sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.e426
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 166 REGISTER
WWW-Authenticate: Digest realm="sip.sg.didlogic.net", 
nonce="X975g1/e+FcgTQnFYPwx5RQy4kH7puXkamn2zYA=", qop="auth"
Content-Length: 0

<------------->
--- (8 headers 0 lines) ---
Responding to challenge, registration to domain/host name 
sip.sg.didlogic.net
REGISTER 12 headers, 0 lines
Reliably Transmitting (NAT) to 107.6.123.181:5060:
REGISTER sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK7f0ddbdc;rport
Max-Forwards: 70
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: <sip:60751@....sg.didlogic.net>
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 167 REGISTER
Supported: replaces, timer
User-Agent: FPBX-15.0.16.81(16.13.0)
Authorization: Digest username="60751", realm="sip.sg.didlogic.net", 
algorithm=MD5, uri="sip:sip.sg.didlogic.net", 
nonce="X975g1/e+FcgTQnFYPwx5RQy4kH7puXkamn2zYA=", 
response="c1184dab1dd50dad14cba70933b6bbaa", qop=auth, 
cnonce="4945f552", nc=00000001
Expires: 120
Contact: <sip:6531590313@....168.1.9:5160>
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK7f0ddbdc;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: 
<sip:60751@....sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.f557
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 167 REGISTER
Contact: <sip:6531590313@<CORPORATE OFFICE PUBLIC 
IP>:26462>;expires=120;received="sip:<CORPORATE OFFICE PUBLIC IP>:26462"
Content-Length: 0

<------------->
--- (8 headers 0 lines) ---
[2020-12-20 07:08:07] NOTICE[2366]: chan_sip.c:24961 
handle_response_register: Outbound Registration: Expiry for 
sip.sg.didlogic.net is 120 sec (Scheduling reregistration in 105 s)
Really destroying SIP dialog 
'005dbc8238e06ac421ef613a3b55e134@....0.0.1' Method: REGISTER

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->
Reliably Transmitting (NAT) to 107.6.123.181:5060:
OPTIONS sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK0f99cec8;rport
Max-Forwards: 70
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as786e56f3
To: <sip:sip.sg.didlogic.net>
Contact: <sip:60751@....168.1.9:5160>
Call-ID: 49595bb227bd6e390ca40ce6508308aa@....168.1.9:5160
CSeq: 102 OPTIONS
User-Agent: FPBX-15.0.16.81(16.13.0)
Date: Sun, 20 Dec 2020 07:09:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, 
INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK0f99cec8;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as786e56f3
To: <sip:sip.sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.e4fb
Call-ID: 49595bb227bd6e390ca40ce6508308aa@....168.1.9:5160
CSeq: 102 OPTIONS
Content-Length: 0

<------------->
--- (7 headers 0 lines) ---
Really destroying SIP dialog 
'49595bb227bd6e390ca40ce6508308aa@....168.1.9:5160' Method: OPTIONS

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->
[2020-12-20 07:09:52] NOTICE[2366]: chan_sip.c:15893 sip_reregister:    
-- Re-registration for  60751@....sg.didlogic.net
REGISTER 12 headers, 0 lines
Reliably Transmitting (NAT) to 107.6.123.181:5060:
REGISTER sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK030dc571;rport
Max-Forwards: 70
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: <sip:60751@....sg.didlogic.net>
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 168 REGISTER
Supported: replaces, timer
User-Agent: FPBX-15.0.16.81(16.13.0)
Authorization: Digest username="60751", realm="sip.sg.didlogic.net", 
algorithm=MD5, uri="sip:sip.sg.didlogic.net", 
nonce="X975g1/e+FcgTQnFYPwx5RQy4kH7puXkamn2zYA=", 
response="b6e96ab578798296e812139c383ebbac", qop=auth, 
cnonce="6313e774", nc=00000002
Expires: 120
Contact: <sip:6531590313@....168.1.9:5160>
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK030dc571;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: <sip:60751@....sg.didlogic.net>;tag=as6df6d977
To: 
<sip:60751@....sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.2fbb
Call-ID: 005dbc8238e06ac421ef613a3b55e134@....0.0.1
CSeq: 168 REGISTER
Contact: <sip:6531590313@<CORPORATE OFFICE PUBLIC 
IP>:26462>;expires=120;received="sip:<CORPORATE OFFICE PUBLIC IP>:26462"
Content-Length: 0

<------------->
--- (8 headers 0 lines) ---
[2020-12-20 07:09:52] NOTICE[2366]: chan_sip.c:24961 
handle_response_register: Outbound Registration: Expiry for 
sip.sg.didlogic.net is 120 sec (Scheduling reregistration in 105 s)
Really destroying SIP dialog 
'005dbc8238e06ac421ef613a3b55e134@....0.0.1' Method: REGISTER
Reliably Transmitting (NAT) to 107.6.123.181:5060:
OPTIONS sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK25d81863;rport
Max-Forwards: 70
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as3a8d9861
To: <sip:sip.sg.didlogic.net>
Contact: <sip:60751@....168.1.9:5160>
Call-ID: 4f9667021511db2968a0dc9964673ac9@....168.1.9:5160
CSeq: 102 OPTIONS
User-Agent: FPBX-15.0.16.81(16.13.0)
Date: Sun, 20 Dec 2020 07:10:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, 
INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK25d81863;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as3a8d9861
To: <sip:sip.sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.a139
Call-ID: 4f9667021511db2968a0dc9964673ac9@....168.1.9:5160
CSeq: 102 OPTIONS
Content-Length: 0

<------------->
--- (7 headers 0 lines) ---
Really destroying SIP dialog 
'4f9667021511db2968a0dc9964673ac9@....168.1.9:5160' Method: OPTIONS

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->

<--- SIP read from UDP:107.6.123.181:5060 --->

<------------->
Reliably Transmitting (NAT) to 107.6.123.181:5060:
OPTIONS sip:sip.sg.didlogic.net SIP/2.0
Via: SIP/2.0/UDP 192.168.1.9:5160;branch=z9hG4bK443d3196;rport
Max-Forwards: 70
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as5d241373
To: <sip:sip.sg.didlogic.net>
Contact: <sip:60751@....168.1.9:5160>
Call-ID: 201fab2b13e08922618f34911ce37ce0@....168.1.9:5160
CSeq: 102 OPTIONS
User-Agent: FPBX-15.0.16.81(16.13.0)
Date: Sun, 20 Dec 2020 07:11:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, 
INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0


---

<--- SIP read from UDP:107.6.123.181:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.1.9:5160;branch=z9hG4bK443d3196;rport=26462;received=<CORPORATE 
OFFICE PUBLIC IP>
 From: "Unknown" <sip:60751@....168.1.9:5160>;tag=as5d241373
To: <sip:sip.sg.didlogic.net>;tag=b27e1a1d33761e85846fc98f5f3a7e58.19e3
Call-ID: 201fab2b13e08922618f34911ce37ce0@....168.1.9:5160
CSeq: 102 OPTIONS
Content-Length: 0

<------------->
--- (7 headers 0 lines) ---
Really destroying SIP dialog 
'201fab2b13e08922618f34911ce37ce0@....168.1.9:5160' Method: OPTIONS

<--- SIP read from UDP:107.6.123.181:5060 --->

freepbx*CLI>

SECTION 11: FINAL WORKING CONFIGURATION
=======================================

I changed pjsip extension password to 8 characters, numeric only. My 
Cisco 7960 IP phone still can't register on Asterisk PBX server.

Now, login to Teo En Ming's Asterisk VoIP IP PBX SIP Server at 
192.168.1.9.

Click Applications > Extensions

Click the pencil icon to edit extension 1600.

Click the Advanced tab.

You MUST make sure "Force rport" is set to No. OTHERWISE, YOUR CISCO 
79XX IP PHONE WILL NOT REGISTER ON YOUR ASTERISK PBX SERVER.

Click Submit.

Click Apply Config. VERY IMPORTANT! MUST CLICK THIS BUTTON!

My Cisco 7960 IP phone now ***SUCCESSFULLY*** registers on my Asterisk 
PBX server, using PJSIP extension 1600. There is no more "X" next to 
line 1 button on the phone.

Yes, my Cisco 7960 IP phone now ***SUCCESSFULLY*** registers on my 
Asterisk PBX server, using PJSIP extension 1600. Repeat for emphasis.

I can now make outgoing phone calls on my Cisco 7960 IP phone.

SECTION 12: CAVEATS
===================

I can now make outgoing phone calls on my Cisco 7960 IP phone.

However, if Voicemail in my extension configuration is set to Disabled, 
and when I try to dial my DID number, it says "Number not valid".

Only when I change Voicemail to Enabled, and when I try to dial my DID 
number, it says:

"The person at extension 1600 is unavailable. Please leave your message 
after the tone, when done hang up or press the # key."

It seems that incoming calls will not be routed to extension 1600.

I will need to do more troubleshooting on this at a future date.

SECTION 13: TIPS
================

When you make modifications to Asterisk configuration files, you need to 
issue the following commands to make changes take effect.

# asterisk -vvvr

freepbx*CLI> core reload

SECTION 14: TROUBLESHOOTING
===========================

Run tcpdump on your Asterisk PBX server.

# tcpdump -i eth0 -vvv | grep -v ssh

tcpdump output:

07:26:28.535667 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], 
proto UDP (17), length 337)
     pfSense.teo-en-ming-corp.com.bootps > 255.255.255.255.bootpc: [udp 
sum ok] BOOTP/DHCP, Reply, length 309, xid 0x84c060a6, Flags [Broadcast] 
(0x8000)
           Your-IP 192.168.1.130
           Client-Ethernet-Address 00:0e:84:c0:60:a6 (oui Unknown)
           Vendor-rfc1048 Extensions
             Magic Cookie 0x63825363
             DHCP-Message Option 53, length 1: ACK
             Server-ID Option 54, length 4: pfSense.teo-en-ming-corp.com
             Lease-Time Option 51, length 4: 5636
             Subnet-Mask Option 1, length 4: 255.255.255.0
             TFTP Option 66, length 11: "192.168.1.9"
             Domain-Name-Server Option 6, length 4: 
pfSense.teo-en-ming-corp.com
             Default-Gateway Option 3, length 4: 
pfSense.teo-en-ming-corp.com
             Domain-Name Option 15, length 20: "teo-en-ming-corp.com"
             END Option 255, length 0

07:26:30.803900 IP (tos 0x60, ttl 64, id 1960, offset 0, flags [none], 
proto UDP (17), length 542)
     192.168.1.130.51098 > freepbx.sangoma.local.sip: [no cksum] SIP, 
length: 514
         REGISTER sip:192.168.1.9 SIP/2.0
         Via: SIP/2.0/UDP 192.168.1.130:5060;branch=z9hG4bK5ab98907
         From: 
<sip:1600@....168.1.9>;tag=000e84c060a60002421e8cdc-0e061182
         To: <sip:1600@....168.1.9>
         Call-ID: 000e84c0-60a60002-3cf23940-64dcadcc@....168.1.130
         Max-Forwards: 70
         CSeq: 101 REGISTER
         User-Agent: Cisco-CP7960G/8.0
         Contact: 
<sip:1600@....168.1.130:5060;user=phone;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-000e84c060a6>";+u.sip!model.ccm.cisco.com="7"
         Content-Length: 0
         Expires: 120

07:26:30.804791 IP (tos 0x60, ttl 64, id 33765, offset 0, flags [DF], 
proto UDP (17), length 535)
     freepbx.sangoma.local.sip > 192.168.1.130.sip: [bad udp cksum 0x85f0 
-> 0xc369!] SIP, length: 507
         SIP/2.0 401 Unauthorized
         Via: SIP/2.0/UDP 
192.168.1.130:5060;received=192.168.1.130;branch=z9hG4bK5ab98907
         Call-ID: 000e84c0-60a60002-3cf23940-64dcadcc@....168.1.130
         From: 
<sip:1600@....168.1.9>;tag=000e84c060a60002421e8cdc-0e061182
         To: <sip:1600@....168.1.9>;tag=z9hG4bK5ab98907
         CSeq: 101 REGISTER
         WWW-Authenticate: Digest 
realm="asterisk",nonce="1608794790/f4dc9767e5f40180ee8cb4cd78bd9d3e",opaque="4cf02bb020c6e7ae",algorithm=md5,qop="auth"
         Server: FPBX-15.0.16.81(16.13.0)
         Content-Length:  0

07:26:30.900961 IP (tos 0x60, ttl 64, id 1961, offset 0, flags [none], 
proto UDP (17), length 795)
     192.168.1.130.51098 > freepbx.sangoma.local.sip: [no cksum] SIP, 
length: 767
         REGISTER sip:192.168.1.9 SIP/2.0
         Via: SIP/2.0/UDP 192.168.1.130:5060;branch=z9hG4bK10cd9d0e
         From: 
<sip:1600@....168.1.9>;tag=000e84c060a60002421e8cdc-0e061182
         To: <sip:1600@....168.1.9>
         Call-ID: 000e84c0-60a60002-3cf23940-64dcadcc@....168.1.130
         Max-Forwards: 70
         CSeq: 102 REGISTER
         User-Agent: Cisco-CP7960G/8.0
         Contact: 
<sip:1600@....168.1.130:5060;user=phone;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-000e84c060a6>";+u.sip!model.ccm.cisco.com="7"
         Authorization: Digest 
username="1600",realm="asterisk",uri="sip:192.168.1.9",response="40ae56341397370a90d6720f19562523",nonce="1608794790/f4dc9767e5f40180ee8cb4cd78bd9d3e",opaque="4cf02bb020c6e7ae",cnonce="61cdcfdc",qop=auth,nc=00000001,algorithm=md5
         Content-Length: 0
         Expires: 120

07:26:30.902283 IP (tos 0x60, ttl 64, id 33830, offset 0, flags [DF], 
proto UDP (17), length 494)
     freepbx.sangoma.local.sip > 192.168.1.130.sip: [bad udp cksum 0x85c7 
-> 0x7d06!] SIP, length: 466
         SIP/2.0 200 OK
         Via: SIP/2.0/UDP 
192.168.1.130:5060;received=192.168.1.130;branch=z9hG4bK10cd9d0e
         Call-ID: 000e84c0-60a60002-3cf23940-64dcadcc@....168.1.130
         From: 
<sip:1600@....168.1.9>;tag=000e84c060a60002421e8cdc-0e061182
         To: <sip:1600@....168.1.9>;tag=z9hG4bK10cd9d0e
         CSeq: 102 REGISTER
         Date: Thu, 24 Dec 2020 07:26:30 GMT
         Contact: <sip:1600@....168.1.130:51098;user=phone>;expires=119
         Expires: 120
         Server: FPBX-15.0.16.81(16.13.0)
         Content-Length:  0

SECTION 15 : ONLINE DISCUSSIONS AND YOUTUBE VIDEOS FOR READING AND 
WATCHING LATER
=================================================================================

Post: Cisco 7960 SIP Registration Problem
Link: 
https://community.freepbx.org/t/cisco-7960-sip-registration-problem/19110

Post: Updated FreePBX install instructions for Chan-SCCP-B
Link: 
https://community.freepbx.org/t/updated-freepbx-install-instructions-for-chan-sccp-b/37077

Post: How to get FreePBX to work with Cisco 7960
Link: 
https://community.freepbx.org/t/how-to-get-freepbx-to-work-with-cisco-7960/20195

Post: Cisco 7940 registration problem RESOLVED
Link: 
https://community.freepbx.org/t/cisco-7940-registration-problem-resolved/30285

Post: Help with registering Cisco 7940s in FreePBX
Link: 
https://community.freepbx.org/t/help-with-registering-cisco-7940s-in-freepbx/30555/4

Post: HELP! I can’t get my Cisco CP-7960G IP hardphone to register on my 
Asterisk VoIP IP PBX SIP Server with FreePBX GUI
Link: 
https://community.freepbx.org/t/help-i-cant-get-my-cisco-cp-7960g-ip-hardphone-to-register-on-my-asterisk-voip-ip-pbx-sip-server-with-freepbx-gui/72162

Post: Can not get Cisco Phones to Register
Link: 
https://community.freepbx.org/t/can-not-get-cisco-phones-to-register/48784/21

Youtube: Cisco 7942g IP Phone Configuration on FreePBX In-Depth(Without 
Endpoint Manager)
Link: https://www.youtube.com/watch?v=gk6w8O3fZlc&feature=youtu.be





Mr. Turritopsis Dohrnii Teo En Ming, 42 years old as of 24 December 2020 
Thursday Christmas Eve, is a TARGETED INDIVIDUAL (TI) living in 
Singapore. He is an IT Consultant with a System Integrator (SI)/computer 
firm in Singapore. He is an IT enthusiast.









-- 
-----BEGIN EMAIL SIGNATURE-----

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link: 
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html

********************************************************************************************

Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's 
Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the 
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 
2019) and Australia (25 Dec 2019 to 9 Jan 2020):

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-----END EMAIL SIGNATURE-----

Powered by blists - more mailing lists