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Beginner

mgcp gateway with fxs issue

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
!
!
!

6 REPLIES 6
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Cisco Employee

Could you please try

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

Beginner

HI

HI

thanatos for your reply

please find in the attched file the debugs 

regards

Beginner

any hepl please about my

any hepl please about my problem ??

Beginner

When you create the MGCP port

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.

Beginner

hi

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

Cisco Employee

i was unable to understand

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.

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