31channel GSM VoIP Gateway with VoIP Card built-in SCG-31-V
SunComm Technology Co., Ltd [Taiwan] 
| Key Facts |
| For 31 channels GSM - VoIP connection, with IPC built in, support SIP & H.323, Astersk compatible, Quad band 900/1800/850/1900MHz; With CDR, LCR Remote Monitor; support SMS |
