CLI Variable Inheritence

Asterisk Asterisk Support
1

Trying to set a channel variable from the CLI on one channel, then read it in the context from-internal-custom during a transfer of the call that originated on that channel. My understanding is that the __Variable syntax would make the Variable accessible via inheritance on the transfer to channel.

I use this from the CLI …

dialplan set chanvar SIP/asterisk-00000029 __FROMEXTEN 8675309

And view this in my from-internal-custom

exten => _x.,n,NoOp(FROM Channel: ${FROMEXTEN})

I see the channel variable created and set when doing a dialplan show chanvar, but it’s empty when I try to access it in the from-internal-custom context.

Any suggestions would be greatly appreciated. I thought maybe I could use shared variables, but I don’t see any way I can set them through the CLI.

BTW … the reason for setting these through the CLI is that the application developer is not familiar with any other way.

2

Maybe you should explain the general idea of your goal, because must be a better-easy way to do it fom Dialplan.

3

As well - what does transfer mean in your scenario? If you do a Dial() after invoking “dialplan set chanvar” it should inherit.

4

On the other hand, if you do a true SIP attended transfer, asterisk doesn’t even know that you are doing a transfer until after party C has been dialed. That also applies to SIP blind transfer implemented as attended.

Whilst I’m not sure about SIP true blind transfer and the features.conf transfers, I would not be surprised if there was no inheritance there, either.