8-Channel 4G LTE Gateway

• GSM Channels: 8 ports

• Power Adapter: DC12V/3A

• CPU: ARM11/700MHz

• RAM: 128M

• Flash:  8M

• Max power consumption: 24W

• Net weight: 0.59KG

• Size: 32.5*14*3cm

• Operating Tempreture: 0-45℃

• Working Humidity:  10%-90% non condensation

Type C:

Type E:

• 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

The concept diagram below shows a simple VoIP network for call center application.  It consists of a softswitch/IP PBX and VoIP clients such as an IP phone, a call center operator, and GoIPs.  All VoIP clients are configured to register to the softswitch/IP PBX.  For the GoIPs, each channel is inserted with a valid SIM card in order to access the 2G/3G/4G network.  Both incoming and outgoing calls between the VoIP and 2G/3G/4G networks can now be realized