Fax over IP Trunks

[atrain24]

I know it's been discussed before but was hoping to see if anyone had any recent experiences...

The setup will be:
-PRI into 3300 MXEIII acting as a Trunking Gateway for now
-IP trunks from 3300 to a 200ICP (release 5)
-Faxes hanging off Analog card on the 200ICP

I've heard mixed reviews of it will work, sometimes work and/or never work.

Just looking to set the expectation with the Customer prior to cutting over....OR not cutting over at all

Thanks in advance!

[ralph]

In my experience even most carriers will suggest not using faxes over IP.
If you're going to do it, IMHO, better to run the faxes off of the 3300 gateway so there's at least one less hop.

Ralph

[martyn]

I agree with Ralph, if you have the faxes on the 3300 then you shouldn't have any IP related issues

[atrain24]

Understood and agreed but the "Sales" folks sold them a 12 port ONS card on the 200ICP plus all the licensing..
They have 9 fax machines and the MXEIII only has the 4 built-in ONS ports.

Oh well...I'm pushing back on Sales for now.

Thanks gents!

[LoopyLou]

Faxing over IP is hit and miss. IP voice is UDP which we know is not a connection oriented protocol therefore there is no error correction. Normally I always put faxes on the gateway if at all possible. If fax has to go across IP then I always try to push for the DSP and t.38 licenses  so faxing uses TCP. Otherwise you can spend enless time troubleshooting fax issues.

[acejavelin]

Understood and agreed but the "Sales" folks sold them a 12 port ONS card on the 200ICP plus all the licensing..
They have 9 fax machines and the MXEIII only has the 4 built-in ONS ports.

Oh well...I'm pushing back on Sales for now.

Thanks gents!

Hmmm... Maybe one physical fax machine plus a Multi-Tech FaxFinder Fax Server? Sounds the perfect solution to me... I don't know of any business that NEEDS 9 fax machines, such a dead technology, when will people move on? The "fax" as we know it today has been around since 1964... That is almost 50 years!!!