On 18-04 00:36, Tony Lum wrote: Yes, it will work, there are several people running similar configurations either on this list or asterisk-users. Jan.

I'm using ser together with asterisk my setup is quite the opposite - ser accepts calls from sip clients and passes them to asterisk. Asterisk then terminates the calls to pstn via E1 lines. works without problems + asterisk has lots of advanced voice options. Dave -----Original Message----- From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org]On Behalf Of Tony Lum Sent: Sunday, April 18, 2004 9:37 AM To: serusers(a)lists.iptel.org Subject: [Serusers] Asterisk/Digium as PSTN gateway and SER as backend softswitch? Hi, Has any one done using Asterisk/Digium T1 card as PSTN gateway, and SER as the backend soft switch? I am looking to install Asterisk boxes in a few cities to act as PSTN gateways and using SER to accept these calls. SER will have to communicate with other long distance carriers to allow world wide calling. Will this combination work? I like to know your comments or suggestions on this combination. thanks Tony Lum _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

I don't think SER and SEMS supports any directly attached PRI cards. It is a SIP Proxy registrar, designed to deal with gateways (and Asterisk could be a gateway). However, I don't think that Asterisk makes a very cheap gateway. Once you factor in the cost of the card, the G.729 codec license, and a fast enough computer to do the coding (since the T1 card does not contain any DSPs), it doesn't seem so cheap anymore. And you'll end up with a gateway which doesn't support VAD/CNG or G.723 either. A used Cisco 2621 with a HDV card starts to look good. You get dedicated DSPs for coding, and support for a variety of different CODECs. Plus working VAD/CNG. Tom On Wed, 21 Apr 2004, Richard wrote:

Richard writes: the most important thing is that asterisk doesn't support remote-party-id that is a must for call forwarding and calling number privacy. a good pstn gw also allows controlling what to do with 3xx replies and refers. it is also desirable to be able to select which interface is used for signaling and which for media. some of these may be possible in asterisk, but i'm not sure. one advantage of asterisk over cisco is that * has support for free low bit rate codecs ilbc and speex. jan already answered that sems currently supports. nothing would prevent adding into sems also support for digium te405p/te410p, which i consider a good thing to do. -- juha

Hello, a TE410P has already been ordered. sems/isdngw will probably support it very soon. Regards, Uli. On Thursday 22 April 2004 12:44, Richard wrote:

Hi, On Friday 23 April 2004 10:25, Tom wrote: they sell cards with and without DSPs. I don't know about codec implementations for the DSP though. sems/isdngw does not use the DSPs in any way yet. Regards, Uli.

Klaus, See www.iptel.org/isdngw/controllers.html Regards, Lambros