In order to know the current call details you can follow one of the following suggestions that were discussed on the Asterisk Users mailing list:

Parse the output of “core show channels verbose”. Remember that the field “Channel” should be unique, in you see two lines per call. Then you can store the output on a file or DB for later use.

You can issue the previous command from outside Asterisk’s CLI,so you can manage the output better. Example:

If you take a closer look at the output. The link between the 2 can be found by matching channel==dstchannel for all channels.

You could also consider using the Asterisk Manager Interface in order to get more details about the call.

For a deeper understanding about Asterisk commands and the AMI interface, I recommend you to read the following book:

• Asterisk: The Definitive Guide

Thanks to Thorsten G. ( tg@DELETETHISovm-group.com ) and Daniel Tryba ( daniel@DELETETHISTOOtryba.nl ) for their valuable feedback.