SIP

Raised as a usability problem by 4 people on Hacker News over 14 years (2012–2025), in 4 threads.

People raised many different problems with SIP, but no single problem has yet been raised by 3 people in 3 different months and threads.

Unreviewed issues were grouped by machine: Claude Haiku labelled each comment as a usability complaint, named what it's about and summed up the problem in a line, and a small model grouped similar problems. Nobody has checked them by hand. Expect mistakes.

The newest 4 complaints

SIP is hard to configure and its implementations don't interoperate2025-02-28
Typing names on a numeric keypad is very hard, causing awkward disconnect with names2023-01-28
Text-based SIP is hard to parse, and libraries are buggy and incomplete2013-07-11
VoIP setup was a nightmare and call lag made it hard to use2012-12-05