Call Waiting and Busy line

Asterisk Asterisk Dialplan
1

Hello all experts,

Question in related to Dial Command.

Today i have implented a call by the DIAL command to external number.

Customer request is that when line is “BUSY” to dial another number.

  • To busy status - i know that dial command has an option to create an event.
  • The question is when the external line give us back a sound of “Call Waiting” - is there an option to create also for that case an event of calling another external line?

Will appreciate your assistance

2

anyone?
Please advise if any other details are missing?

3

Earliest bump time is 24 hours.

Asterisk has very limited support for detecting in band call progress signals.

4

You cant take dial action based on early media,

5

Thanks alot for answering!

You cant take dial action based on early media,

For Dial command there are different options:

Busy \ No Answer \ Torture etc…

  • Will it work for external calls?
  • if not how will it work?
6

Busy is based on out of band singalling. No Answer is a simple timeout, or possibly some out of band signalling. Torture is a status that only be set by user provided scripting.

For Busy, the network has to send a recognizable busy status. That will be a specific SIP final response code, after which the call no longer exists. The network will not consider call waiting as busy.

The sort of signalling you ar e referring to is intended only for human consumption.

7

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