why am I getting duplicate UUID when using api create_uuid?

Question

I am new at FS and need some help.. I am getting

switch_core_session.c:2325 Duplicate UUID!

I am using the api create_uuid via ESL. When I check the generated uuid I get a different one every time. I got the error for some time and then it just stopped.

Thank you!!

Answer 1

Duplicate UUID error will occur if you are creating multiple channels with same UUID. To set custom UUID you need to set origination_uuid variable when you want to originate call. If you bridge call like this:

{origination_uuid=abc}user/1000,user/1001

uuid abc will be set on both channels (1000 and 1001), therefore you will get Duplicate UUID error. So if you want to set custom UUID to channel you need to use [] brackets instead of {} brackets. You can then bridge call like this:

[origination_uuid=abc]user/100,[origination_uuid=def]user/1001

[] brackets will set channel variables on single channel, and {} brackets will set variables on all channels.

You can read more here about channel variables: https://freeswitch.org/confluence/display/FREESWITCH/Channel+Variables