Incoming Analog Trunk Lines Not Terminating (CUCM)

[KennethButler24475]

Hi everyone,

I have a client with a few analog trunk lines that physically run into a Cisco 2901 voice router. The problem they're having is that when an incoming call comes in and that caller hangs up the phone before the callee has a chance to pick it up, one of two things happens,

1. If the callee DOESN'T have voicemail active, the call rings indefinitely even after the caller hangs up and will only stop once the callee picks up the phone then hang it up.

2. If the callee HAS voicemail active, the call goes to voicemail after the 19 second no answer timer expires, from there, the line is unreleasable from the callee's phone since it's now stuck inside of the voicemail box.

Is there anything I can do as a workaround even? I know analog lines are sometimes prone to issues like this sometimes and I will try to push them into upgrading their line type, but for now, I'd REALLY appreciate some help on this. I'm actually on-site now at the moment of this post in case that helps someone assist me better, thanks.

[Carlo Poggiarelli]

Hi Kenneth,

How is your 2901 registered to your CUCM (MGCP, SCCP)?

Can you please post a show run from your 2901?

Thanks

Regards

Carlo

[KennethButler24475]

Hi Carlo, thanks for replying so quickly, it's MGCP.

voice-port 0/0/0
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/0/1
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/0/2
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/0/3
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/1/0
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/1/1
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/1/2
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
voice-port 0/1/3
trunk-group GBFPORTR
timing hookflash-out 50
timing guard-out 1000
connection plar opx 8601
!
dial-peer voice 999401 pots
service mgcpapp
port 0/0/0
!
dial-peer voice 999402 pots
service mgcpapp
port 0/0/1
!
dial-peer voice 999403 pots
service mgcpapp
port 0/0/2
!
dial-peer voice 999404 pots
service mgcpapp
port 0/0/3
!
dial-peer voice 999405 pots
service mgcpapp
port 0/1/0
!
dial-peer voice 999406 pots
service mgcpapp
port 0/1/1
!
dial-peer voice 999100 pots
trunkgroup GBFPORTR
trunkgroup OutsideChip
destination-pattern 9[2-9]......
forward-digits 7
!
dial-peer voice 99900993 pots
service mgcpapp
port 0/0/3
!
dial-peer voice 999101 pots
trunkgroup GBFPORTR
trunkgroup OutsideChip
destination-pattern 9911
forward-digits 3
!
dial-peer voice 999102 pots
trunkgroup GBFPORTR
trunkgroup OutsideChip
destination-pattern 9919
forward-digits 3
!
dial-peer voice 999103 pots
trunkgroup GBFPORTR
trunkgroup OutsideChip
destination-pattern 911
forward-digits 3
!
dial-peer voice 999104 pots
trunkgroup GBFPORTR
trunkgroup OutsideChip
destination-pattern 919
forward-digits 3
!
dial-peer voice 99940 pots
service mgcpapp
port 0/1/2
!
dial-peer voice 999407 pots
service mgcpapp
port 0/1/3

[Carlo Poggiarelli]

Hi Kenneth,

Which version are you running on your VG?

Did you configure the MGCP port on CUCM as a ground start?

Please let me know

Regards

Carlo

[KennethButler24475]

The VG is version 15.2 and I'm about 85% sure the lines are loop start, but I didn't originally set this up and I'm not on site at the moment to confirm. Assuming that it's loop start though, what would be the next thing you'd need to know or have me do?