[Asterisk-Users] Asterisk & fax-out

[Doug R]

I will try spandsp then.  

On another note, what SIP server works best with Asterisk?  I want to use Asterisk for a PSTN gateway, and currently I am using as a SIP server since it seems like everything else has so many firewall issues.

If I have all my SIP clients using the same codec, does it take a lot of processing power to just route calls from one phone to another on asterisk?  I've tried Vocal with little success with firewalls, and SIP Express with better luck, but neither seem nearly as easy to use as Asterisk is.  I'm able to run multiple Asterisk servers - in fact I have 5 dual 1ghz systems with nearly a gig of RAM each ready to run whatever - SER, Vocal, Asterisk, etc.  But I really like Asterisk for it's features, and the fact that it's NAT-proof (with canreinvite=off, of course).  About how many SIP-SIP calls could I route, without transcoding, at the same time on one of those machines....?   Would I be expecting too much to get say, 50-100 SIP-SIP calls on one machine simultaneously?

---------- Original Message ----------------------------------
From: steve at daviesfam.org
Reply-To: asterisk-users at lists.digium.com
Date:  Fri, 4 Jun 2004 08:43:00 +0200 (SAST)

>
>
>On Fri, 4 Jun 2004, Doug R wrote:
>
>> I want to setup a phone system that can allow the caller to type in a
>> faxback number, and automatically be sent a fax file.  Is this possible
>> with Asterisk?  Or using Asterisk & a Linux fax program?  I've seen
>> stuff about incoming faxes, but nothing about outgoing.  This is over a
>> Zap channel, not IP, btw.
>> 
>
>I did see that the spandsp FAX stuff has TXFax as well as RXFax.  So I 
>presume that you'd be able to arrange your Asterisk to either send the FAX 
>on the very same call ("call this number from your FAX machine handset, 
>choose the info you're looking for and then start receiving"), or create a 
>call spoolfile and initiate a seperate outbound call.
>
>I think you should evaluate the spandsp fax stuff for yourself, though.  
>It works nicely for me in my limited testing but does seem to have open 
>issues with some fax machines.
>
>Steve
>
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