How to debug AT command message

Asterisk Asterisk Support
1

Hi all
i am using 3G dongle as GSM gateway to call out.
i wonder how 's to debug AT command which asterisk send and Response from dongle.
Thank so much.

2

Hi all
Hope somebody can help me
thank so much :frowning:

3

Generally you need to find the technical manually for a typical GSM phone. That can be difficult!