I'm trying to get a C1 Compact Flash GSM/GPRS card (aka Audiovox RTM8000, Siemens Connect2Air etc.etc.) working with our ruggedised Pocket PC and having absolutely no luck. Note that we are trying to get it to work in GSM mode (ie modem to modem), not GPRS mode.

Maybe someone out there (who has had the pleasure in the past of working out what obscure init string is necessary to get a modem going) can help me in the this case.

The problem:
I'm using an init string of ATQ0V1S7=120X4.
When the modems connect, I never get back "CONNECT" - I get nothing.
Our software waits for the connect, thus timesout because it never comes (despite the modems having connected).

Background Info:
- The card works perfectly in GPRS mode
- After logging the traffic for the GPRS connection, I can see that a CONNECT message comes back in that case (ie it works perfectly in GPRS mode)
- Other modems connect and work perfectly with the system

Any suggestions will be gratefully received 8-).

Nigel H.