SCCP FXS on 2911 with CUCM 10.X

[Zaher Juha]

Dears

CUCM >>> SCCP >>> ISR 2911 with fxs ports

this is my senario

the FXS is register on CUCM, a FAX is connected to the FXS i can call it but it will not ring

during the call when i press reset button the call will be disconnected means it's fully registered with the CUCM but i don't know what is the problem here

CONFIGURATION USED::

=============================

stcapp ccm-group 1
stcapp
!        
stcapp feature access-code
!
stcapp feature speed-dial
!
stcapp call-control mode feature
!
!
!
!
voice-card 0
 dsp services dspfarm
!
!
!
voice service pots
 fax rate disable
!
voice service voip
 no ip address trusted authenticate
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 fax protocol pass-through g711alaw
 sip
  early-offer forced
  midcall-signaling passthru
!
voice class codec 1
 codec preference 1 g711ulaw
 codec preference 2 g711alaw
 codec preference 3 g729r8
!
voice-port 0/0/0
 cptone GB
 timeouts initial 60
 timeouts interdigit 60
 timeouts ringing infinity
 caller-id enable
!

ccm-manager config server 172.28.34.11 
ccm-manager config
ccm-manager sccp local GigabitEthernet0/0
ccm-manager sccp
sccp local GigabitEthernet0/0
sccp ccm 172.28.34.11 identifier 1 version 7.0
sccp ccm 172.28.34.12 identifier 2 version 7.0
sccp
!
sccp ccm group 1
 associate ccm 1 priority 1
 associate ccm 2 priority 2
 switchback method immediate
dial-peer voice 8940 pots
 service stcapp
 port 0/0/0
 

ANY HELP ......

Thanks

[Zaher Juha]

Come on guys any help

[Francisco Granados]

I'd love to help but, any particular reason why you want to run the port on SCCP and not MGCP? SCCP fax will not support T.38 and will make it more difficult. I run all my fax machines on FXS through MGCP, I can share a config if it helps.

Thanks,

Frank

[Zaher Juha]

Thanks Frank, yes it would be very helpful 

[Francisco Granados]

Ok, this is my config from my CUBE, I run my cube as a SIP gateway with trunks to my ITSP and CUCM but adding a bit of mgcp to manage the devices attached. Please make sure you understand the technology and the changes you are making before you choose to adopt this config, this is simply an example of how I do it, your company needs may differ from mine. 

Thanks,

Frank

[Francisco Granados]

This will enable you to register your fxs port with CUCM via MGCP, then in CUCM via the gateway device you can make adjustments like speed, error correction, and more details for your fax.

[Zaher Juha]

Hi Clypherus

MGCP now is configured and the fxs has registered with the cucm but the problem stills the same

when i call the analog phone it will not ring but if you off-hock the handset you can hear the other end but they can't hear you

outgoing calls are OK

[Francisco Granados]

How are you connected to the PSTN? Sip trunk? 

When you check the configuration of you FXS port in call manager, does it look like this?: 

Product	Cisco MGCP FXS Port
Gateway	RI-3925-CUBE
Device Protocol	Analog Access
Device is not trusted
Registration	Registered with Cisco Unified Communications Manager 10.0.17.6
IP Address	10.0.12.2
End-Point Name	AALN/S0/SU3/0@RI-3925-CUBE

Thanks,

Frank

[Zaher Juha]

Yes SIP Trunk,

also fxs mgcp registered the same as yours

[Francisco Granados]

Ok, let me make sure I got all the facts: it does not ring when called. But if you pick up the handset you can hear the caller, and they cannot hear you. 

Next step: While "ringing" on the gateway do "debug vpm signal" and "Debug ccssip messages". Call from your cell phone, post both debugs separately.

Have you considered trying a different FXS card?

Thanks,

Frank

[Zaher Juha]

Thanks Francisco

The problem as cisco says the FXSDID is not supported with MGCP, i tried sip instead and now it's ok