David, For older modems, use AT%TT6B,5 or AT%TT6D,5 for 3429 baud. The AT%TT test commands are used to output carrier signals without being connected to a peer modem. If your modem does not support AT%TT commands you have to use Rockwell/Conexant's PTT Utility. If you need help, let me know.
Roger Magnuson Manager, Marketing & Business Development TGC AB Dalvagen 28, 169 56 SOLNA, Sweden TEL: +46 856250050 (direct) FAX: +46 856250045 mobile: +46 707770594 mailto:[email protected] internet: http://www.tgc.se -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of David Gelfand Sent: Monday, November 22, 1999 7:43 PM To: [email protected] Subject: Analog modem testing to Part 68 Listmembers, We are doing in-house continuity compliance testing to Part 68, and one of our products is a voice-band modem (V.34). Normally these modems will shut off if they don't detect another modem at the other end. Does anyone have any way of getting this type of modem to output handshaking and DTMF tones for signal power measurements without having a second modem connected? It uses a Rockwell chipset. Could I use two modems back to back? In that case, could I measure the voltage and the impedance of the line with a bridge to calculate the power? Any help would be VERY appreciated. Regards, David.
