Hi all, To solve my need for dial in modems, I've hit upon an idea: buy a used T1 "analog" modem bank like a Lucent Portmaster that takes in a T1 and provides several 56K modems. This is overkill for a lightly used dial in service, but the prices of these boxes is so cheap (~$300) with ISPs going away from dial in service that it makes sense.
This is how I imagine it would work: Asterisk PC with one TE410P 4 port T1 card. One port goes to the PSTN and has my incoming calls. One port goes to the Portmaster which has perhaps as many as 24 "modems" in it. Two ports are free. A user would dial in, get the auto attendant, dial in an extension (for the modem), and be transfered to the Portmaster T1. The Portmaster would establish a 56K modem connection with the caller. Some questions for the gurus out there: 1. Will Asterisk route from one T1 to another "perfectly"? That is, the bits that arrive on the Portmaster would need to be the exact bits sent on the PSTN T1. Seem obvious that this should be so. 2. Would you predict any trouble interfacing a Portmaster to the Digium card? Can it both "sink" a T1 (from the PSTN) and "source" a T1 (to the Portmaster)? 3. Has anyone out there done this? Any suggestions? Which modem banks to buy/avoid? Places to buy used/surplus/cheap ones? 4. Will the above plan actually achieve the "56K" modem connection when routed through the asterisk box? That is, will there be issues of latency/bandwidth in handling the 64 kbps streams? Thanks for everyone's help. -- Mike Ciholas (812) 476-2721 voice CIHOLAS Enterprises (812) 476-2881 fax 2626 Kotter Ave, Unit D [EMAIL PROTECTED] Evansville, IN 47715 http://www.ciholas.com _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
