[cisco-voip] Cisco Fax Server/ Resource Unavailable / MGCP H323

[Bill Talley]

Finally found the config.  I think this should cover it.  Someone please let 
me know if I'm missing anything.


++++++++++++++++++
This portion is used to fall back to fax passthrough for the analog faxes
++++++++++++++++++

voice service voip
 fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through 
g711ulaw


++++++++++++++++
MGCP configuration
++++++++++++++++

mgcp
mgcp call-agent xxx.xxx.xxx.xxx service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability fxr-package
mgcp bind control source-interface GigabitEthernet0/0
mgcp bind media source-interface GigabitEthernet0/0
no mgcp t38 inhibit




-----Original Message-----
From: cisco-voip-bounces at puck.nether.net 
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Bill Talley
Sent: Monday, March 10, 2008 3:50 PM
To: Kalle Tetto; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Cisco Fax Server/ Resource Unavailable / MGCP H323

Addition to my previous email.

We had both t38 fax server and analog fax machines, requiring both fax relay 
and fax/modem passthrough on the router.  With ccm-manager config server setup 
on the router, call manager controlled the configuration.  In that scenario, 
fax relay was being disabled after a reboot until being manually re-enabled on 
the router and mgcp was reset.



-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Kalle Tetto
Sent: Monday, March 10, 2008 3:36 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Cisco Fax Server/ Resource Unavailable / MGCP H323

Hi,

We have a Cisco Fax Server, Captaris 9.3 installed. Connecting via H323 to a 
Cisco CCM Cluster 4.2(3). The CCM is connected via MGCP PRI to the PSTN.

PSTN<->MGCP VGW E1/PRI <-> CCM 4.2(3) <-> Fax Server H323

If I call in from PSTN I can see resource unavailable on the Q931 Debug of 
IOS. I could not test from inside currently, because we configured remotely 
with no one onsite.

I receive this error after 3 rings. If I call out from Fax Server it seems to 
be the same, the called FAX or phone rings, but after 3 rings the Fax server 
says destination busy.

I have checked for codec mismatches, but could not find any error. Also I have 
MTP, Transcoding and Conferencing configured. I will test tomorrow without 
Media Resources, only to be sure.

Has anyone had this before?

Has anyone this setup running, if so could you please pass me the running MGCP 
Config and the setup in the Fax Server.

Many Thanks and all the best.

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