Is able to use AT commands on treo

[yulun]

Is able to use AT commands on Treo 650 CDMA?
And how to access basic phone functions in a palm program?

Thanks.

[Borszczuk]

Download Palm OS Reference manual. Read telephony related chapters. Browse knowledge base and tutorial sources. Experiment yourself a bit. Then come back with exact questions.

[yulun]

May be this topic is undocumented.
I want to find a method to send SMS but not use PhnLibSendMessage().