Packet2Packet bridging and native bridging

what is the difference??

i have such scheme:

[softphone,wifiphone,linksysphone] < - > [asterisk] < - > [pap2t-phone]

I use sip and all theese groups are in different lans…so traffic goes through internet.

When i call pap2t from my linksys phone - in CLI i see Packet2Packet bridging and hear everything well…
but when i call from Wifi or soft phone - i see in CLI Native bridging and cant hear anything…
How can i switch to P2P bridging?

I believe that p2p bridging only happens when the other device has a different “P-Time”. Check your NAT settings. I have seen that been the cause for a lot of evil.