01-12-2022 12:17 PM
I have a PRI connected to my router and was asked to have a analog phone work from off the router bypassing call manager I am able to see call coming in with a called party number '1234567899' but debug states the call is Unallocated/unassigned
my dial pair
dial-peer voice 7899 pots
incoming called-number 1234567899
no digit-strip
port 1/0/1
forward-digits 0
my analog phone is on a voice port
voice-port 1/0/1
station-id number 1234567899
could this have anything to do with PRI being MGCP and it trying to send it to CUCM? or what am I missing
01-12-2022 12:29 PM - edited 01-12-2022 10:19 PM
Yes it is caused by that your PRI is controlled by MGCP. You have a few options, either you reconfigure your control protocol from MGCP to SIP or H.323, where SIP would be the current favoured standard configuration. Or you configure another connection with your gateway, SIP trunk or a H323 gateway, in CM to work in parallel with your current control protocol (MGCP) to be able to hairpin the call back to the gateway. Also here SIP would be the favoured option.
Sounds complicated, but is actually rather straightforward once you start with it. Out of these my preferred option would be to convert the gateway into SIP and stop using MGCP altogether.
01-12-2022 12:30 PM
I forgot to note I ask about MGCP because my PRI interface is set as follows and not sure if the bind to CUCM was taking precedence over the dial-peer
interface Serial0/0/2:23
description PRI
no ip address
encapsulation hdlc
no cdp enable
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bind-13 ccm-manager
01-12-2022 10:15 PM
Yes it does take precedence. With MGCP the dial peer configuration in the gateway isn’t in use at all. You have to get the call to hit the gateway via SIP or H.323 for the dial peer to be in effect. In my previous response I outlined the options at hand for this.
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