IP-PBX completely SIP-Standard compatible

Supported by the SIP standard (RFC3261) one a wide range of standardized softphones and hardware phones of manufacturers, Aastra, Cisco, Grandstream, Polycom, Snom and many VoIP providers like sipcall and peoplefone. The integration of existing POTS-/ISDN phones will able with the modules with up to 8 ports of FXS/FXO, ISDN up to 16 S0 channel also GSM Mobile with up to 4 SIM cards.

SIP/VoIP common IP-Phones