Call is connecting but phone is not ringing CCIE Voice LAB setup
I was trying to build the CCIE Voice lab for practice and learn Cisco Voice .I configured T1 connection from HQ site to PSTN T1 with tree channels .HQ site I had to configure HQ site MGCP with using three channels .I configured the MGCP on T1 line and it was registered in CUCM. I configured T1 line channels manually because i wanted to use 3 channels . as soon as i was applying the registering on cucm it was making it 24 channels . but T1 channels was up and multiple frame was established .when i was calling from HQ site to PSTN phone On the phone call was showing connected but PSTN phone was not ringing. I did the mistake on my PSTN router I did not configured following parameter. so it was not ringing my phone .
Below was the my configuration on HQ site and PSTN site .
HQ site
controller T1 0/1/0
clock source internal
cablelength long 0db
pri-group timeslots 1-3,24 service mgcp
interface Serial0/1/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bind-l3 ccm-manager
isdn negotiate-bchan
isdn bchan-number-order ascending
no cdp enable
ccm-manager redundant-host 142.100.64.12
ccm-manager mgcp
mgcp
mgcp call-agent 142.100.64.11 2427 service-type mgcp version 0.1
mgcp bind control source-interface FastEthernet0/0.100
mgcp bind media source-interface FastEthernet0/0.100
PSTN site
controller T1 0/1/1
clock source internal
pri-group timeslots 1-3,24
interface Serial0/1/1:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable
To change the pri-group timeslots just shutdown the T1 controller and and voice port and remove the timeslots and add new timeslots.
Important Note:- don’t use command ccm-manager config server its downloads configuration from CUCM and overwrite the manual configuration.
you can have different ISDN switch-type in global parameter and Controller Serial interface of T1 Line .
Serial interface by default its takes ISDN switch-type from Global configuration you can change in serial interface as you required.