•The product from FXO / FXS to SIP, is not only an Analog Gateway, but also is an IP PBX which support 20 to 1024 SIP users per unit;
•Rackmount modular design, scalable capacity from 4 to 192 ports per unit;
•Other optional interfaces: E1 / ISDN, GSM / CDMA / WCDMA, etc.
