[cisco-voip] VG224 + SCCP + FAX + CCM4.1(3) supported?

[Lelio Fulgenzi]

I understand what ECM is - but I was confused about how you said you 
disabled it on the FXS ports.

Is there an ECM setting on FXS ports? I thought it was just on the FAX 
machine you disable ECM.

--------------------------------------------------------------------------------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"Life expectancy would grow by leaps and bounds if green vegetables smelled 
as good as bacon."
Doug Larson


----- Original Message ----- 
From: "Paul Choi" <asobihoudai at yahoo.com>
To: "Lelio Fulgenzi" <lelio at uoguelph.ca>; "Jason Aarons (US)" 
<jason.aarons at us.didata.com>; <cisco-voip at puck.nether.net>
Sent: Monday, January 28, 2008 10:46 PM
Subject: Re: [cisco-voip] VG224 + SCCP + FAX + CCM4.1(3) supported?


> ECM is commonly used for FAX but has a low tolerance
> for errors and can cause FAX transmissions to fail at
> a higher than normal rate.
>
> ...so I read in the Cisco manual.
>
> Paul
>
> --- Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
>
>> What do you mean by disabling ECM on all FXS ports -
>> I was under the
>> impression that's a FAX configuration.
>>
>> ----- Original Message ----- 
>> From: "Paul Choi" <asobihoudai at yahoo.com>
>> To: "Jason Aarons (US)"
>> <jason.aarons at us.didata.com>;
>> <cisco-voip at puck.nether.net>
>> Sent: Monday, January 28, 2008 9:57 PM
>> Subject: Re: [cisco-voip] VG224 + SCCP + FAX +
>> CCM4.1(3) supported?
>>
>>
>> >I got FAX working by disabling ECM on all FXS ports
>> > and enabling fax protocol pass-through codec
>> g711ulaw
>> > on the router where the incoming calls were
>> > originating with a PRI. I stuck the same commands
>> on
>> > the local router and the VG224 and FAX
>> transmissions
>> > were successful henceforth. Thanks folks!
>> >
>> > Paul
>> >
>> > --- "Jason Aarons (US)"
>> <jason.aarons at us.didata.com>
>> > wrote:
>> >
>> >> After spending several hours with TAC after a 224
>> >> IOS upgrade, doing
>> >> debug hpi and extensive troubleshooting to no
>> avail
>> >> (the pcm capture
>> >> said it was the PSTN), we decided to downgrade
>> VG224
>> >> IOS. That didn't
>> >> work.  Changed IOS again and it worked.  I would
>> try
>> >> 2-3 versions of IOS
>> >> before opening a TAC case.
>> >>
>> >> I have several sites with SCCP/VG224.  The global
>> >> "voice service voip /
>> >> modem passthru" on both VG224 and Gateway is
>> >> recommended.  Disable G3
>> >> and no ECM.  I have modem, faxes, credit card
>> >> readers working when doing
>> >> this.
>> >>
>> >> -----Original Message-----
>> >> From: cisco-voip-bounces at puck.nether.net
>> >> [mailto:cisco-voip-bounces at puck.nether.net] On
>> >> Behalf Of Paul Choi
>> >> Sent: Monday, January 28, 2008 6:42 PM
>> >> To: cisco-voip at puck.nether.net
>> >> Subject: [cisco-voip] VG224 + SCCP + FAX +
>> CCM4.1(3)
>> >> supported?
>> >>
>> >> I have installed the latest IOS on the VG224 and
>> >> have
>> >> the needed ports registered on the CCM cluster
>> using
>> >> SCCP. Voice calls work fine. FAX transmissions
>> >> however
>> >> don't work the first time around. The first time
>> I
>> >> transmit, I get nothing. The second time the fax
>> is
>> >> automatically retried, it apparently sends ok.
>> >>
>> >> Is SCCP + fax passthrough just not supported? I
>> see
>> >> no
>> >> documentation on this on Cisco's website.
>> >>
>> >> I'm pulling my hair out.... :(
>> >>
>> >> Paul
>> >>
>> >>
>> >>
>> >>
>> >
>>
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