Features
Channels: 4x GSM/CDMA/UMTS
GSM Frequency: 850/900/1800/1900MHz
CDMA Frequency: 800MHz
UMTS Frequency: 850/1900, 850/2100, 900/2100MHz
Switch Port: LAN 10/100Base-T
Protocol Support: SIP, IAX2
Audio Codecs: G.711a/u-law, G.722, G.726, G.729A, GSM