Sippet.Message.create_call_id
You're seeing just the function
create_call_id
, go back to Sippet.Message module for more information.
Specs
create_call_id() :: binary()
Creates an unique Call-ID (120-bit random string, 20 characters long).
Example
Sippet.create_call_id
"NlV4TfQwkmPlNJkyHPpF"