RentPBX Configuration

[unsichtbarre]

I had the darnedest time getting IP phones (extensions) to configure for my RentPBX/Incredible 3 installation.

The problem was: the phones were showing up as "online" but unable to receive incoming calls (went directly to voice mail) and unable to receive incoming audio.

I have Polycom IP500 and IP501 phones in 3 locations, plus an occasional instance of CSIPSIMPLE and/or SIPDroid running behind firewalls.

Here are the configurations that got the IP Phones working:

dtmfmode:RFC2833
canreinvite:no
host:dynamic
trustrpid:yes
sendrpid:no
type:friend
nat:yes
qualifyfreq:60
transport:All - TLS Primary
encryption:no

I hope this is useful for persons moving from physical to RentPBX and possible running Polycom Phones. Truly, I think setting nat:yes made the difference, but the Polycom default Transport is DNSnaptr, while on my Incredible3 install the dafault transport was UDP only.