John, We have had varying levels of success using RBS signaling. I've tinkered with it using a tor2 clone and my NEC NEAX2400 PBX. Among the tricks necessary to get it working is figuring out which side is FXO and which side is FXS. My PBX doesn't use FXO/FXS terminology so I just basically threw every dip switch combo until I got it working. (Well sort of working - my PBX has a bug where a call made to the PBX from FS won't allow a release/hangup unless the call gets transferred to a different PBX extension. Totally freaky and 100% reproducible every time. I have yet to find any NEC person who knows what to do.) The trick to getting openzap working with RBS is to call your RBS span an analog span. (There are only "analog" and "PRI" spans at the moment, and RBS signaling resembles analog signaling in that everything is inband.) The setup I used is documented here: http://wiki.freeswitch.org/wiki/Openzap.conf_Examples#Tormenta2 Spans 1 and 2 in this config are RBS. If you are using zaptel then you must definitely will want to use zttool to watch the AB bits on your channels so that you can see if the signaling is working. Zttool will at least let you know if your layer 1 communications are working. (I don't know about Sangoma or PIKA cards...) Hope this helps. Hop on #openzap on irc.freenode.net for live discussions of TDM stuff and use #freeswitch for general fs discussions. -MC

-----Original Message----- From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch- users-bounces@lists.freeswitch.org] On Behalf Of John Wehle Sent: Tuesday, July 08, 2008 9:01 PM To: freeswitch-users@lists.freeswitch.org Subject: [Freeswitch-users] T1 RBS Support?

Just curious as to the state of / plan for T1 RBS support. Our System 25 PBX doesn't support ISDN, however it does support RBS. It would be nice to be able to run more lines into our FreeSWITCH box using a T1 instead of analog lines.

-- John

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| Feith Systems | Voice: 1-215-646-8000 | Email: john@feith.com | | John Wehle | Fax: 1-215-540-5495 | |

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