Telephony - OSSRank

Rank	Project
1056 134	Asterisk PBX Telephony Sangoma started in 1999 34,058 commits 372 contributors
1504 139	FreeSWITCH Telephony SignalWire started in 2012 11,487 commits 364 contributors
1871 131	FreePBX Telephony Sangoma started in 2005 4,362 commits 81 contributors
2707 22	Routr Telephony started in 2017 2,779 commits 11 contributors
3354 113	PhoneInfoga Telephony started in 2018 1,390 commits 23 contributors