Calls stack on connecting when on restricted network

grishka / libtgvoip

VoIP library for Telegram clients

The Unlicense

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Calls stack on connecting when on restricted network #75

Closed iShift closed 5 years ago

iShift commented 5 years ago

When use enterprise/captive wifi where all port instead of 443 are block - call try to connect but don't work.

Suggestion - use 433 port or relay call with telegram server

grishka commented 5 years ago

Firstly, this isn't related to the library itself, but rather to the Telegram backend. For which there isn't an issue tracker ¯\_(ツ)_/¯

Secondly, even if relays did support the port 443, calls use UDP. Port 53 (DNS) would probably work better in such a restricted environment, but I have no idea tbh. While TCP is supported as a last resort option, you need a perfect internet connection so that there aren't delays introduced by TCP retransmissions.