Looking to set up a complete IP PBX in minutes? Then look no further. 3CX is a SIP server that works with popular VoIP Gateways and SIP phones and allows you to do just that. You can download and install 3CX’s SIP server on Windows or Linux in a matter of minutes. And once installed the configuration can be done easily via the easy to use web interface.
Free for 16 sim calls – unlimited extensions
Free web conferencing (25 participants)
Supports SIP 2.0
Supports standard PSTN/Telephone lines via SIP Gateways and Audiocodes
Supports the use of SIP Trunks and SIP providers
Supports main codecs including G711, GSM, IspeeX and ILBLC