VoIP calls connection issues - PKT_INIT packets not receiving responses #1694
Description
Hello! I'm experiencing issues with VoIP calls in MadelineProto. The connection seems to be stuck in a loop sending PKT_INIT packets without receiving proper responses.
Environment:
- MadelineProto version: 8.6.1
- PHP version: 8.4-fpm
- Running in Docker container
Observed behavior:
The VoIPController continuously sends PKT_INIT packets to UDP endpoints but appears to not establish a stable connection:
VoIPController, 1240306068: Sending PKT_INIT to udp://91.108.13.22:597...
VoIPController, 1240306068: Sending PKT_INIT to udp://91.108.9.39:597...
VoIPController, 1240306068: Sending PKT_INIT to udp://91.108.17.41:596...
IPv6 connections are failing with "Network is unreachable":
VoIPController, 1240306068: Got error while connecting to udp://[2001:b28:f23d:f101:1:0:111:306]:597:
Amp\Socket\ConnectException: Connection to udp://[2001:b28:f23d:f101:1:0:111:306]:597 failed after 3 attempts
Audio playback seems to work (DJ loop: playing ... to primary queue), but the connection status remains unstable.
Questions:
- Is this behavior normal during VoIP call establishment?
- Are there known issues with VoIP calls to PC (Telegram Desktop) or iOS clients?
- Should IPv6 connectivity be required, or is IPv4-only sufficient?
My setup includes:
- PHP extensions: uv-beta, redis, ffi, gmp
- System limits configured as per documentation
- All required dependencies installed
Has anyone successfully established stable VoIP calls with similar configuration? Any insights would be appreciated.