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couldn't get t38 protocol to work for fax

akin_lopez
Level 1
Level 1

‎11-11-2003 03:13 AM - edited ‎03-17-2019 08:07 PM

Hello, i am using a 1751V router with ios

version 12.2 connecting to a 3725 voice gateway that connects toa PBX. i couldn't send fax successfully from the 1751V router to an extension on the PBX connected to the 3725 router. each time a get the fax tone it cuts off after about 7secs. I am using SIP session protocol between the routers. i did debug and i got the following error message.

4d03h: SIP:SDP parse abort reason :6

please HELP !!!!!

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bwilmoth
Level 5
Level 5

‎11-17-2003 08:59 AM

It looks like a bug in the IOS check the bugs - CSCds47190 & CSCds50200

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