Hi list!

I have an Asterisk 1.8.30.0-1 installed on an OpenWRT-Switch. It works correct since July with two VoIP-phones.

Now I configured my mobile phone (Samsung Galaxy 2 with Android 4.1.2) to use my Asterisk, so that I can call and receive calls from my mobile phone, too.

I configured it to use a UDP-Port, which will be forwarded with NAT to the Asterisk and to always send keepalive.

Here the configuration of the user in Asterisk:

[00491773333333]
fullname = 00491773333333
secret = VERYSECRET
dahdichan = 1
hassip = yes hasiax = no hash323 = no hasmanager = no callwaiting = no context = default host = dynamic dtmfmode=rfc2833
canreinvite=no sendrpid=pai type=friend nat=yes qualify=yes qualifyfreq`
avpf=no force_avp=no icesupport=no encryption=no callgrouppickupgroupdial=SIP/00491773333333
allow = all

Now the problem: the audio quality is very poor and the other peer has big problem to understand me. This if I use my own WLAN, too (same network of the other VoIP-phones). I don’t find anything in the logs.

Any idea, where could be the problem?

Thanks a lot Luca Bertoncello
(lucabert@lucabert.de)