VG5X VoIP Gateway is one product of VoIP VG series by VOPTECH.Carriers and enterprises can use it to provide regular phone, fax, and IP Centrex services through broadband networks.

Feature Highlights

  • 48-96 Analoge Ports
  • 24-96 Concurrent Calls
  • PSTN Fail Over
  • Powerful Routing Function
  • Call Log Analyze
  • Hot-swappable FXS/FXO interface cards
  • Dual-redundant Gigabit-Ethernet ports
  • Optional dual AC/DC power supplies
  • Class I lighting protection


•SIP/MGCP protocols
•500 routing and number manipulation rules
•Fax over IP using T.38 fax relay and automatic switching between voice/fax
•Hot-swappable FXS/FXO interface card
•Dual redundant gigabit Ethernet ports
•Dual AC/DC power supplies available
•PSTN failover
•Auto provisioning
•Remote access via third-party Network Management System (TR-069, SNMP)
•Interoperability with popular SIP servers, such as Cisco CallManager, Broadsoft, Huawei IMS, and Asterisk/Elastix
•Class I lightning protection
•Call Control:SIP/UDP and SIP/TCP (RFC3261), IMS (3GPP), MGCP (RFC3435)
•Network:Telnet, SSH, HTTP, HTTPS, DHCP/PPPoE client, Radius, DNS (A/SRV record), STUN
•Caller ID:Bellcore Type 1&2, ETSI, BT, NTT, and DTMF-based CID
•Codec:G.711 (a/μ), G.729a, G.723.1, GSM, iLBC
•DTMF:In-band audio, RFC2833, SIP-INFO
•Hook-flash:Local processing, RFC2833, SIP-INFO
•Fax over IP:Auto-switch to T.38 from G.711 Fax pass-through, Fax data pump V.21/V.27ter/V.29 for T.38 compliant Fax Relay up to 9.6 kbps
•Disconnect modes:Polarity reversal, Busy tone detection, Loop current
•Voice Quality Enhancement:Echo cancellation (G.168-2004), Jitter buffer, Silence suppression (VAD, CNG), PLC

Advanced Fetures

Caller Transfer:Blind transfer, Consultative transfer
Call Forward:Call forward all, Call forward no answer, Call forward busy
•Call Setting:Routing based on the caller or callee number, Digit map, 3-way calling, Speed dialing, Do not disturb, Call forking, Color ringback tone, Hunt group, Ring cadence, Message Waiting Indicator (MWI)


•CPU 1Ghz
•Voice DSP Module 200 MHz, 3 to 12 modules
•Flash 32MB
Port capture, Packet capture
Single/Dual AC power supplies
100 to 240 VAC, 50/60 Hz, 2A maximum
• Single/Dual DC power supplies
-36 to -72 VDC, 4A
Mounting Rack
Temperature: 32 to 104°F (0 to 40°C), Humidity: 10 to 90% RH (non-condensing)


•User-defined Ports:SIP port, RTP port, HTTP/HTTPS port to access the Web GUI
•Access list:IP addresses allowed to access HTTP/HTTPS/ Telnet/SSH service
•VoIP:SIP-allowed IP addresses
•Encryption:Encrypted password/PIN
•Intrusion Prevention:Ping blocking
•Device Management:TR-069 management (TR-069, TR-104, and TR-106), SNMP
•Auto Provisioning:Download configuration file via TFTP/FTP/ HTTP/HTTPS, Obtaining ACS address via DHCP option 66 or redirection
•Log Management:8-leave logs, Syslog
•Data Capture:Port capture, Packet capture
•Status and Statistic:Call status and history, Device status monitoring and statistics collection
•Upgrade:Firmware upgrade via Web GUI