I have read through all the articles on the two flavours of SIP, namely PJSIP and Chan_SIP. I have read all the stories a few years back about how PJSIP was not stable yet etc, how Chan_SIP is being phased out…
Here is my question, because of a huge crash oh my PBX server, I am rebuilding my FPBX server. I am using FPBX 14 and Asterisk 13. (Unless there is a huge reason why I should use Asterisk 15) Should I be using Chan_SIP, PJSIP, or both on my server install. For hardware I have to support some old PolyCom 501 / 601’s which are being phased out. I have some Aastra 67xxi series phone which will be around for a few more years. For new phones looking seriously at the Sangoma phones.
So with this hardware, and future plans should I be using:
Asterisk 13 or Asterisk 15?
Chan_SIP or PJSIP or Both?
If there are consideration, in both the installation / configuration would be nice to know about those also.
Any help would be awesome