The GOIP-4 Channels GSM Gateway is a specific type of GSM gateway device designed to facilitate voice communication over GSM networks. The "4 Channels" designation indicates that the GSM gateway supports four simultaneous voice channels. This means it can handle up to four concurrent voice calls at a time.
VoIP-GSM gateway for 4 channels are equipped with multiple SIM card slots, allowing the device to use multiple mobile network services simultaneously. Each SIM card slot corresponds to a separate GSM channel. Capable of routing voice calls between GSM networks and VoIP networks, providing flexibility in call routing and cost optimization.
Call from VoIP to GSM or GSM to VoIP
Auto check balance and recharge
Remote SIM Control
Outbound call from voip
Inbound call from gsm
Remote management
GSM Channels：4
Power Adapter: DC 12V/2A
CPU: ARM11/700MHz
RAM: 128MB
Flash:8M
GSM Frequency: 850/900/1800/1900MHz
Max power consumption: 12W
Net weight: 0.42KG
Size:25*14*2.5cm
Operating Temperature: 0-45℃
Working Humidity: 10%-90% non condensation
VoIP Protocols: SIP V2, H.323 V4
Audio Codecs: g711(alaw/ulaw), g729, g723.1
DTMF format: SIP INFO, RFC2833, Inband
Packet Loss Concealment
Programmable Jitter Buffer: Fixed, Dynamic, Adaptive
Network Connection: DHCP, PPPOE, Static IP
STUN Server
Support English, Chinese
Support Signaling encryption
Support media encryption
Support Media NAT Traversal
Support Remote control
Common Applications:
Voice Communication:
Used for making and receiving voice calls over GSM networks, with the added advantage of VoIP integration for cost savings.
GSM to VoIP Integration:
Deployed in scenarios where integration between GSM networks and VoIP infrastructure is required.
Cost-Effective Communication:
Ideal for situations where cost-effective long-distance calling or international calling is a priority.
Remote Communication:
Suited for applications that require voice communication in locations with limited access to traditional telecommunication infrastructure.
Telecom Resilience:
Provides an alternative communication channel in situations where traditional landline networks may be unavailable or unreliable.
