Our partner is using AS5350 and we have problem with g729r8 codec between these gateways.
We use codec = g729r8, payload size = 20 bytes on both ends, but when AS5300 terminating calls I see calls with pre-ietf codec
22E6 : 30114375hs.147859 +338 +357 pid:3 Answer xxxx
dur 00:00:00 tx:0/0 rx:0/0 2C (no requested circuit.)
IP x.x.x.x:18770 rtt:0ms pl:0/0ms lost:0/0/0 delay:0/0/0ms g729r8 pre-ietf
About 30% of all calls come with right g729r8 codec (non pre-ietf) and AS5300 can successfully terminate them. But pre-eitf calls get "dsp error" on further dial-peers.
1353 : 30163075hs.147862 +-1 +347 pid:9821 Originate xxxx
dur 00:00:00 tx:0/0 rx:10/1600 AC (dsp error)
IP x.x.x.x:18892 rtt:0ms pl:0/0ms lost:0/0/0 delay:0/0/0ms clear-channel
(Call passes PSTN Loopback before reaching this dial-peer)
I've read that AS5350 doesn't support real g729r8 and g729br8 high-complex codecs, but it support only medium-complex g729 ones. Can this be the cause of problem?