mgcp gateway with fxs issue

[abd88elhak]

hi
i have cisco 2921 gateway configured on cucm 11 with MGCP protocol and i have fxs ports
the ports are registred on cucm and the outbound calls from fxs are perfect
i have two probelm concerning inbound call to fxs :

the call is answred even the ip phone not answered yet
i make serveral test of inbound calls some of the theme are disctonnected even i didnt end the call

please find in the attched file the configuration on the FXO  on cucm 

this is the configuration on the router :

ip address trusted list
ipv4 10.0.102.0 255.255.255.0
allow-connections h323 to h323
allow-connections sip to h323
allow-connections sip to sip
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
sip
session transport tcp
registrar server
!
!
!
!
!
!
!
!
license udi pid CISCO2901/K9 sn FGL201920MH
hw-module pvdm 0/0
!
!
!
!
redundancy
!
!
!
!
!
controller E1 0/0/0
pri-group timeslots 1-31 service mgcp
!
controller E1 0/0/1
!
!
!
!
!
!
!
!
!
!
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 10.0.102.20 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
voice-port 0/0/0:15
cptone FR
!
voice-port 0/1/0
supervisory disconnect anytone
cptone FR
timing hookflash-out 50
timing guard-out 1000
impedance complex2
caller-id enable
!
voice-port 0/1/1
!
voice-port 0/1/2
!
voice-port 0/1/3
!
voice-port 0/2/0
!
voice-port 0/2/1
!
voice-port 0/2/2
!
voice-port 0/2/3
!
!
!

[Varundeep Chhatwal]

Could you please try collecting below debugs for incoming call. I suspect some missing config or timer parameters. 

Debug voip vtsp all

debug vpm signal

debug voice ccapi inout

[abd88elhak]

HI

thanatos for your reply

please find in the attched file the debugs 

regards

[abd88elhak]

any hepl please about my problem ??

[Evgeny Izetov]

When you create the MGCP port in CUCM and it asks you to pick POTS, Loop Start, or Ground Start, choose POTS. Then add the 1001 DN to it.

Edit: Actually, it seems the problem is with an FXO, not FXS port. Disregard.

[abd88elhak]

hi

i didn't find POTS on fxo port , juste loop start or ground

when i choose ground the call still desconnect after 4 seconds 

i'm using cucm version 11

regards

[Varundeep Chhatwal]

i was unable to understand what you meant by " the call is answred even the ip phone not answered yet". so just looked in logs for call disconnection during the call.

looking at the call legs 47 , it seems disconnection is happening from incoming leg from cucm.