One-Channel GSM VoIP Gateway
3
1 Product Introduction
1.1 General Information
A VoIP GSM Gateway enables direct routing between IP and GSM network without the use of
a FXO port or the PSTN network. With this device, the usage of VoIP is greatly enhanced with
significant savings on long distance and roaming charges.
1.2 Protocol
TCP/IP V4 (IP V6 auto adapt)
ITU-T H.323 V4 Standard
H.2250 V4 Standard
H.245 V7 Standard
H.235 Standard
(
MD5
,
HMAC-SHA1
)
ITU-T G.711 alaw/ulaw, G.729A, G.729AB, and G.723.1 Voice Codec
RFC1889 Real Time Data Transmission
Proprietary Firewall-Pass-Through Technology
SIP V2.0 Standard
Simple Traversal of UDP over NAT (STUN)
Web-base Management
PPP over Ethernet (PPPoE)
PPP Authentication Protocol (PAP)