| appkonference | conferencing application for asterisk | |
| asterisk | open source multi-protocol PBX and telephony toolkit | |
| asterisk-native-sounds | 'native' (better) sound files for Asterisk open source PBX | |
| asterisk-openbsd-moh | add OpenBSD songs to Asterisk music-on-hold | |
| asterisk-sounds | extra sound files for Asterisk open source PBX | |
| astmanproxy | proxy for Asterisk Manager Interface | |
| fobbit | creative voip blaster driver/software | |
| gsutil | dump/restore Grandstream device configurations | |
| iaxmodem | a software fax modem that uses an IAX channel | |
| kamailio | mature and flexible open source SIP server | |
| libosip2 | GNU oSIP library | |
| p5-asterisk | collection of perl modules to be used with asterisk | |
| p5-Net-SIP | perl framework for SIP | |
| pjsua | lightweight sip client | |
| siproxd | proxy/masquerading daemon for the SIP protocol | |
| spandsp | DSP library for telephony |