... ,1WAN,1LAN2100MHzWCOIP88WCDMA,1WAN,1LAN2100MHzWCOIP8-328WCDMA,1WAN,1LAN2100MHz voip system 1. 8 Channels GSM/CDMA/WCDMA VoIP Gateway2. SIP Protocol Compliancy3. ... Ejoin private etc. l Support Hotline, Phone book, Speed dial, Dial Plan l Update firmware by local or internet l Field ... lock/switch SIM card according to its balance, balance alarm l Centralized network management l Caller ID detection and ...