chan_sip support in asterisk

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

Hello

Asterisk historically implemented SIP in the chan_sip module.  A
new implementation was introduced in Asterisk 12, in the chan_pjsip
module. chan_sip has been deprecated and later removed in Asterisk
21.

Migrating from chan_sip to chan_pjsip is not straightforward.
Configuration files changed a lot, and features are provided by
new modules. People struggling to make the conversion must stick
to Asterisk 20, which fortunately is a LTS release.

There is a possible alternative, we have the plain old chan_sip
being maintained as an external module for newer Asterisk releases:
https://github.com/InterLinked1/chan_sip

I tested it with success on Asterisk 22.3. I intend to use it to
keep up with latest Asterisk while I finalize the pjsip migration.
I suspect it could be of interest to other pkgsrc users.

Do you think it would be interesting to have an option to
pkgsrc/comms/asterisk22 to enable legacy chan_sip support?


-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost