[cisco-voip] CUCM6.01 - MSExchange UM T.38 Faxing

[Justin Steinberg]

you need to enable the fxr package, that more or less enables t38.

add the 'mgcp package-capability fxr-package' command to your MGCP
gateway.  Also ensure that cisco fax relay is disabled 'no ccm-manager
fax'.

and then you need to no mgcp / mgcp.

I haven't used e2k7um for t38 yet.

On Jan 14, 2008 3:58 PM, Wolfe, Robert <rwolfe at burwood.com> wrote:
>
>
>
>
> Hi everyone,
>
>
>
> I have a CUCM6.01 cluster that talks to an Exchange 2007 UM cluster over
> SIP.  The issue I have is with T.38 faxing.   I have an eFax service which
> is calling into the CUCM, which is a CTI forwarded to VM.  Once the fax
> server hits the mailbox, it seems that MSX is not picking up the fax tones.
>
>
>
> There is a known issue on the MS side that I'm looking into, as we are on
> MSX07SP1.  I'm going to change the setting, but I wanted to see if there was
> anything I'm missing in the GW config to get this to work properly.
>
>
>
> Has anyone successfully gotten CM6 and MSX07 to work with faxing?  Can it
> even be done?
>
>
>
> I am running 12.4(15)T1 on a 2851 with MGCP.   I have ensured that T.38 is
> on.  Show MGCP excerpt below:
>
>
>
> MGCP T.38 Max Fax Rate is DEFAULT
>
> MGCP T.38 Fax is ENABLED
>
> MGCP T.38 Fax ECM is ENABLED
>
> MGCP T.38 Fax NSF Override is DISABLED
>
> MGCP T.38 Fax Low Speed Redundancy: 0
>
> MGCP T.38 Fax High Speed Redundancy: 0
>
> MGCP Fax relay SG3-to-G3: ENABLED
>
>
>
> MGCP Config:
>
>
>
> mgcp
>
> mgcp call-agent WSDCCM01 2427 service-type mgcp version 0.1
>
> mgcp dtmf-relay voip codec all mode out-of-band
>
> mgcp rtp unreachable timeout 1000 action notify
>
> mgcp modem passthrough voip mode nse
>
> mgcp package-capability rtp-package
>
> mgcp package-capability sst-package
>
> mgcp package-capability pre-package
>
> no mgcp package-capability res-package
>
> no mgcp package-capability fxr-package
>
> no mgcp timer receive-rtcp
>
> mgcp sdp simple
>
> mgcp rtp payload-type g726r16 static
>
> mgcp bind control source-interface GigabitEthernet0/0.299
>
> mgcp bind media source-interface GigabitEthernet0/0.299
>
> !
>
> mgcp profile default
>
> !
>
>
>
> Thanks for your interest!
>
>
>
> -rob
>
>
>
> Rob Wolfe  |   Consultant    |   burwood group, inc.
>  rwolfe@<no-spam>burwood.com
>
>
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