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T1 to analog thru trixbox pro

beaudettee
Posts: 57
 Member Since:
2007-05-02
Submitted by beaudettee on Tue, 12/11/2007 - 9:56am.

Hi All:

My current phone lines come via T1 into my old Telrad PBX. The PBX has an analog card in it that routs certain DID's to the fax machines in the office.

Once we switch over to trixbox Pro, I would like to keep this same type of configuration (and add a VoIP circuit for backup and linking). My plan was to buy the trixbox enterprise appliance with the dual T1 card.
1. Is there a card capable of doing what I want it to do (peel analog ports off of the T1 and send them internally)
2. If so, what are my choices?

I am not so concerned with tbpro routing or emailing faxes but rather handling the switching capabilities of converting the T1 channels to analog.

Does this make any sense?

Thanks!

Eric B

‹ CCE edition - auto record outbound calls astwatch proccess id not running, hudlite cannot connect ›

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callinectes
Posts: 209
 Member Since:
2007-05-12
You can direct a DID from
Wed, 12/19/2007 - 6:45am

You can direct a DID from the T1 to an analog FXS port (ext) on a Sangoma (or other) analog card but this is not recommended because the timing delays caused by host processing can cause errors in the fax transmission. I've heard of it working well for some but it's not a recommended solution.

There are other ways to do this, such as using a second T1 connected to a channel bank, bypassing the processing involved in the option above (if you search you should find more info on this), but this is an expensive option.


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beaudettee
Posts: 57
 Member Since:
2007-05-02
I am resigned..
Mon, 01/07/2008 - 8:17am

I guess I sort of have to resign myself to the fact that if I want reliable faxing for a VoIP PBX I will have to resort to ordering separate analog trunks specifically for faxing only and bypass the PBX altogether, which kind of sucks but I am finding most(if not all) VoIP PBX solutions have issues with faxing.


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dkullmann
Posts: 76
 Member Since:
2007-01-02
Faxing and IP PBX
Thu, 01/24/2008 - 6:52pm

beaudettee:

I suggest against using faxing via an IP PBX because timing issues can cause quality problems. However, the IP PBX industry recognizes the demand for this. Sangoma is working on making a product that will provide accurate timing and analog lines connectivity for faxing.

My advice is it make due with separate analog lines for faxing now and wait until a reliable solution is available!

David J Kullmann
tb Pro Support

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http://help.trixbox.com


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KodaK
Posts: 1885
 Member Since:
2006-06-14
Nevermind.
Thu, 01/24/2008 - 7:27pm

Nevermind.

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WARNING: I no longer actively participate in these forums. My thoughts on trixbox in a nutshell: http://www.youtube.com/watch?v=q4xBMkWu1pE Use AsteriskNOW instead.


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