On Oct 24, 2015, at 2:40 PM, Russell Treleaven <address@hidden
7.1.2 That is the latest version available for the Iphone 4.
What version of linphone?
What codec are you using?
Whatever is the default. Should I try something else?
Can you be more specific about the sound quality issues?
The transmitted sound is fine for the first 10 or 15 seconds. Then it begins to get choppy, and the call quality indicator on the PC or Mac
begins to say things like “very bad”. The delay time to the other end gets greater and greater, up to 5 or 10 seconds.
After that it is unintelligible at the other end.
This is unique to the Iphone 4 s. The Iphone 5 s work fine, but they have IOS 9.1 .
I just tested linphone 184.108.40.206 on ios 8.3 using opus and it sounds great.
General sound quality is great.
Echo cancellation is great.
Noise cancellation is particularly great.
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