Hi guys quick question in regards to the differences in IAX and SIP trunks.
I have FreePBX here behind pfsense firewall. I am trying to connect a remote SIP trunk but has audio issues. After 2 days of mucking around trying to get this working through NAT with static ports etc I gave up.
Reason for this is I have two mobile phones with Zoiper loaded which I would like to connect to my Asterix server to make calls and dial local extensions.
I have found using IAX this has resolved my audio issues from the quick testing I have done so far.
What are the Pro’s and Con’s of doing this?