Audio calls not working properly in some devices (WiFi and 3G)

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a) Before posting your issue you MUST answer to the questions otherwise it
will be rejected (invalid status) by us
b) Please check the issue tacker to avoid duplication
c) Please provide network capture (wireshark) or Android log (DDMS output)
if you want quick response

What steps will reproduce the problem?
1. Install IMSDroid-2.548.870.apk on LG L5 and Orange Luno handsets.
2. Register into Kamailio+Asterisk server.
3. Make an audio call (to an outside line), using G.729 codec. Make an audio
call (to an outside line), using G.711 codec.

What is the expected output? What do you see instead?
Listen audio correctly in both sides is expected, but it only happens in caller
side. Sound on IMSDroid side is good, but on the outside is not acceptable at
all, very choppy and with a lot of echo. We made our tests in both Wi-Fi and 3G
networks.

What version of the product are you using? On what operating system?
We are using IMSDroid-2.548.870 in Android 4.x S.O. This IMSDroid version is
the one we achieved the best results with on LG L5 and Orange Luno devices. If
we install an IMSDroid version compiled with last version of doubango
libraries, results are even worst.

Please provide any additional information below.
Our system lets users register in a Kamailio+Asterisk server and place SIP
calls. Asterisk send these calls to an outside line, so only caller side is a
soft phone. Most of devices we have tested worked fine with both
IMSDroid-2.548.870 and IMSDroid compiled with last doubango libraries version,
but not in LG L5 and Orange Luno. We tested Indoona app (based in doubango
libraries), in these two devices and we obtained the same results. However,
other soft phones like Libon or Rebtel worked fine on these handsets.

I attach network capture o several calls with IMSDroid-2.548.870.apk, using
both G.729 and G.711 codecs.

Any advise?

Thanks

```

Original issue reported on code.google.com by `javier.p...@imagine800.es` on 18 Feb 2015 at 9:29

Attachments:
- [imsdroid_lgl5.pcap](https://storage.googleapis.com/google-code-attachments/imsdroid/issue-547/comment-0/imsdroid_lgl5.pcap)

No source file or test is named. Start by tracing the Android audio-call path for IMSDroid-2.548.870 and reviewing the attached imsdroid_lgl5.pcap captures for G.729 and G.711 on the LG L5 and Orange Luno. Done means outside-line audio is clear in both directions on Wi-Fi and 3G.

Written by the indexing model from the issue text.