Fax gets elongated when converted from T1 to VoIP

[fishin4me]

Hi,

I'm running into a problem where a fax document gets elongated if the fax call goes out from the Avaya PBX8700 to a fax machine that is connected to the G700 VoIP pbx.

-Fax is sent out from the PSTN.

-The outgoing fax has some conversations:
-The OPS protocol (using the PBX8700) is converted to VoIP (using the G700 VoIP PBX).

-The outgoing fax call is sent to the fax machine that is connected to the G700 VoIP PBX.

However, I can send out the same document to other fax machines in the PSTN with not problems.

I'm wondering if this may be caused due to the packet transmission getting lost?

 

[senk1s]

are both systems capable of 'interpreting' t.37/8 FoIP?

 

[fishin4me]

Yes, both sides can iterpret t.37

 

[mextera]

look in the routers for passthrough when the tagged as fax

mextera