SC-385sms is a 2 channels VoIP GSM Gateway for call termination (VoIP to GSM) and origination (GSM to VoIP). It is SIP based and compatible with Asterisk. It can enable to make 2 calls simultaneously from VoIP to GSM networks or from GSM network to IP VoIP devices.

Major Function
VoIP (SIP)�BGSM conversion. (SC-385)
50 sets of LAN -> MOBILE routes setting,
50 sets of MOBILE -> LAN routes setting.
Voice response for setting and status (dial in from mobile).
For call termination (VoIP to GSM) and origination (GSM to VoIP).
Standard SIP (RFC2543, RFC3261) protocol, All functions can be set on web.

Specification
Protocols: SIP (RFC2543, RFC3261)
TCP/IP: IP/TCP/UDP/RTP/RTCP/�BCMP/ARP/RARP/SNTP�BDHCP/DNS Client�BIEEE802.1P/Q�BToS/DiffServ�BNAT Traversal�BSTUN�BuPnP�BIP Assignment�BStatic IP�B DHCP�BPPPoE
Codec: G.711 u-Law�BG.711 a-Law�BG.723.1 (5.3k)�BG.723.1 (6.3k)�BG.729A�BG.729A/B�BVoice Quality�BVAD�BCNG�BAEC�BLEC�BPacket loss
CDMA (SC-385C): 800MHz CDMA�BSupports cdma2000 1��RTT Air Interface�BBackward compatibility from IS-2000 to IS-95A/B�BSupport Voice for both 13K QCELP and EVRC; Supports both full rate and 1/8 gating on the reverse link
GSM (SC-385):
Quad band: 900/1800/1900/850 MHz