Inbound Fax - Alternate Routing when Busy

robfwtx

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Feb 10, 2009
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#1
Hello,

I'm setting up a fax server with a SIP Trunk that can handle up to 5 concurrent calls. I route incoming calls based on DID to a particular IAX2 extension. However, if I have trunk capicity, I want to be able to send that inbound call to any free IAX2 extension, yet still maintain the destination identified by the DID. With a PBX, I'd have a hunt group setup with multiple fax extensions. I don't see how to use a ring group with faxes.

Example:

IAX2 Extensions 20001-20010
DIDs 333.444.2001 - 333.444.2010
SIP Trunk Max Concurrent Call 5

If DID ending 2001 receives another call while receiving a fax at it's Extention 20001, the next free extension would answer, take the fax, and route back to extension 20001.

Hopefully someone has some ideas.
Robert
 

dicko

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#2
A ring group IS a hunt group if you choose the hunt "ring strategy" for the group it will behave exactly as a "terminal hunt group", there are other options choose one that suits.

just set up the groupto suit and send the inbound route to it.
 

robfwtx

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#3
Thanks.. it wasn't too clear in the route configuration screen since there was a separate fax section and ring groups couldn't be selected there.

One thing I did notice, the IAX2 extension wouldn't answer if the inbound DID was different than what was entered in the extension. Would you recommend simply creating additional IAX2 extensions and configuring a ring group per incoming fax line? Or is there a better idea?

Thanks,
Robert
 

dicko

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#4
Well that's one way, but hylafax (the underlying fax engine) is highly configurable as to how to handle a particular fax depending on it's metadata, that unfortunately is not configurable from Elastix. You've gotta get your hands dirty to do that.

regards

dicko
 

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