Hi Callum,

The error logs translates into "not able to get a full SIP message within 4 read operations from the network". What is puzzling is the fact you claim that the REGISTER is actually successfully read and processed by OpenSIPS - if this is correct, maybe there is some other data on the connection, something else than the SIP packages, maybe some CRLF pinging that triggers this.
Do you have pcap on that connection ?

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  https://www.opensips-solutions.com
OpenSIPS eBootcamp
  https://www.opensips.org/Training/Bootcamp

On 1/25/22 4:20 PM, Callum Guy wrote:
Hi All,

I'm wondering if anyone in the community has encountered the iOS 15 WebRTC bug as reported here:

https://www.wowza.com/community/t/ios-15-webrtc-problem/93868/4 <https://www.wowza.com/community/t/ios-15-webrtc-problem/93868/4> https://developer.apple.com/forums/thread/689293 <https://developer.apple.com/forums/thread/689293>

The bug causes INVITES to fail to be digested by opensips with a log message as shown below:

opensips[217976]: ERROR:proto_wss:ws_process: Made 4 read attempts but message is not complete yet - closing connection

Worth noting is that REGISTER messages still arrive so as mentioned in the article is does appear related to fragmentation of the messages being sent through, perhaps failing to conclude this for reassembly but I can't make sense of the network trace.

My client device is using SIP.js and I can confirm that it continues to work on Android and other iOS versions. I'm currently running opensips 3.0.5 and would happily upgrade to the latest version if there was anything worth trying or wolfssl has any potential to resolve this issue!

Thanks,

Callum



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