Change Log for Release asterisk-certified-18.9-cert18

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res_pjsip_session.c: Map empty extensions in INVITEs to s.

Author: Naveen Albert Date: 2022-10-17

Some SIP devices use an empty extension for PLAR functionality.

Rather than rejecting these empty extensions, we now use the s extension for such calls to mirror the existing PLAR functionality in Asterisk (e.g. chan_dahdi).

ASTERISK-30265 #close