Problems with D2 and O2 and T-Com and ISDN in Germany

Hello,

after playing a bit with sms_client I found:

1. It works for D1 and Eplus without problems.

2. Using D2, after modem connection (modem gets silent and sends CONNECT 
string) nothing happens. sms_client runs into 30 sec timeout and dies.

3. I do not know the setup for O2. So I read the postings which stated that it 
did not matter which SMSC to use. This statement is, at least for Germany, 
obviously not correct. A have an old O2 phone card and tried out Eplus SMSC 
and D1 SMSC. sms_client always tells the message had been accepted for 
delivery but the message has not appeared after 2 days yet.

4. I also tried to use D1 SMSC for Eplus number. It also said the message had 
been accepted, but the message has never appeared at the Eplus phone.

5. I know T-Com also uses SMSC which can be setup in modern fixed net phones 
and can send SMS to all German phone networks. T-Com uses the number 0193010, 
and there is a second provider under the name AnnyWay 09003266900. But I do 
not know the protocol they use. Can it work with them? Does anyone know?

6. It only works with a plain old analog modem. Trying to use ISDN4LINUX modem 
emulation failed. sms_client did not dial at all (according to isdnlog) and I 
do not know why.

Does anyone know what to do in order to get it work?

Thank you very much.
Frank


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