WellGate M1
Single GSM SIP IP Gateway


WellGate M1 front view Color : Milk White

WellGate M1 rear view


  • GSM over SIP VoIP Gateway
  • Suit to end user for Voice over IP Service Provider
  • Call Forward
  • Support both SIP Proxy mode and Peer to Peer call
  • WAN and LAN support router feature



WellGate M1 is single SIM GoIP GSM SIP gateway which connects SIP
VoIP with GSM BTS (base station). This device is suitable for office
IP-PBX application or office to branch office to call between PSTN
Line office and IP Call. Or, connect to IP Telephony SIP Service
provider from/to GSM mobile network.

Replace PSTN land line

The traditional PSTN land line connects to FXO gateway causes many installation issues, for
instance, disconnect one detection, loop current drop detection, Caller ID analog signal detection
(DTMF, FSK or Bellcore type caller ID). Moreover, FXO gateway is not able to detect remote
user answer call exact time while FXO gateway makes a call out. As a result, the billing time
is not accurate. Some area is not able to provide land line and only mobile signal provided.
WellGate M1 is single GSM SIP gateway which solves above issues.

Provision is easier than before

Auto Provision server software installs at Windows or Linux platform are supported to manage,
configure and configure firmware download remotely to WellGate M1 automatically. It is a
convenience device for VoIP ITSP Service provider to manage this device easily.


Since WellGate M1 is a GSM base SIP gateway, it transits GSM incoming call to remote IP
devices via SIP Server or IP-PBX. In addition, M1 also support peer to peer (P2P) call without
SIP Server or IP-PBX.
It can be used in IP Telephony service provider or office GSM gateway to access local GSM
network. Its application is convenient for inter office call or multination branch office calls.



  • Interface:
    • Ethernet port (RJ-45, 10/100 base-T)
    • 1-WAN port, connect to IP Network
    • 1-LAN port connect to local network
    • DC +12V power input Jack
    • Reset key to return Factory setting
    • GSM SIM card tray
  • IP Network connection
    • IPv4 (RFC 791)
    • MAC Address (IEEE 802.3)
    • DMZ and MAC Clone Setting
    • Static IP
    • DHCP Client (RFC 2131), WAN port
    • DHCP Server, LAN port
    • Wire line speed more than 85MB at Bridge mode
    • PPPoE
    • DDNS
    • DMZ
    • VLAN : 802.1Q/1P
    • VPN: PPTP and L2TP without encryption
    • Virtual Server (DHCP Server IP range)
    • DNS Client
    • SNTP support Daylight Saving Time (DST) configuration
    • SNTP with time zone
    • TCP/UDP (RFC 793/768)
    • RTP/RTCP (RFC 1889/1890)
    • IPV4 ICMP (RFC 792),
    • TFTP Client
    • QoS Support : ToS
  • SIP Protocol :
    • RFC3261 compliance
    • SIP Proxy compatible with Asterisk or free download SIP Server
    • SIP UDP Protocol
    • Support SIP compact Form
    • SIP Session Timer (RFC 4028)
    • MD5 Digest Authentication (RFC2069/RFC2617)
    • Message Waiting Indication (RFC3842)
    • Event Notification (RFC3265)
    • REFER (RFC3515)
    • Support DNS SRV to locate SIP Server (RFC 3263)
    • Support STUN NAT Traversal
    • Support “RPort” parameter (RFC 3581)
    • Support P2P call
    • Only Accept call from registered SIP Server
    • Set up “User Agent” for SIP protocol
  • Audio Codec :
    • G.711 A-law/μ-law, G.729A, GSMFR, G.723.1(6.3K, 5.3K)
    • G.711 A-law/μ-law, G.729, G.723, G.726, GSM codec
    • Silence Suppression
    • VAD/CNG
    • Jitter Buffer : Up to 96 packets
    • Echo Cancellation
    • Packet Loss Compensation
    • Automatic Gain Control
    • In-band/out of band DTMF (RFC4733, RFC2833 / SIP INFO)
    • Adaptive/Configurable Jitter Buffer
    • Acoustic Echo Cancellation
  • Call Features :
    • GSM Call services: Dial, Answer and Hang up
    • Audio Control: Echo Suppression, Noise Suppression, Side
      Tone and Gain Control.
    • GSM Quad Bands 850/900/1800/1900 MHz,
    • Operate on any GSM network to provide voice calls over IP
    • Global Country Based Tone Specification
    • Voice NAT Traversal:
      STUN(Type 1,2),
      STUN (All), enter STUN Server IP address
    • Behind NAT (enter IP sharing address)
    • Out-Band DTMF : RFC2833 and SIP Info
    • RFC2833 Payload type: disable, 101 or 96
    • DTMF send out ON and OFF Time configure
    • DTMF Detect Minimum ON Time(msec) configure
    • DTMF Detect Minimum OFF Time(msec) configure
    • DTMF Relay Volume configuration
    • Minimum Jitter Buffer(msec) configure
    • Maximum Jitter Buffer(msec) configure
    • Max Echo Tail Length (G.168): 32, 64 and 128ms
    • Keep Alive disable or enable (Time configure in second)
    • Jitter Optimizer Factor configure
    • Call Hold
    • Call Transfer
  • GSM Ports Interface: :
    • Activate or deactivate
    • GSM Phone number configuration
    • GSM Call services: Dial, Answer and Hang up.
    • Audio Control: Echo Suppression, Noise Suppression,
      Side Tone and Gain Control.
    • GSM Quad Bands 850/900/1800/1900 MHz,
    • Operate on any GSM network to provide voice calls over IP
    • Detachable External Antenna: dual band (1800/1900Hz)
      Impedance: 50 ohms
      Antenna Gain:  1.204dBi at 1800Mhz
      Impedance: 50 ohms
      Antenna Gain:  1.204dBi at 1800Mhz
      Tx Power:      1 Watt at 1800/1900 MHz
      Rx Sensitivity:  -107dBm at 1800/1900 MHz MHz
    • Or optional Quad Band Antenna
    • Detachable External Antenna: Quad band.
      Impedance: 50 ohms
      Antenna Gain:  1.204dBi at 1800Mhz
      Tx Power:        2 Watts at 850/900 MHz
                            1 Watt at 1800/1900 MHz
      Rx Sensitivity: -108dBm at 850/900 MHz
                            -107dBm at 1800/1900 MHz
    • Adjustable GSM Tx gain and Rx volume
    • Enter PIN Code of GSM SIM card
    • Limit accumulated GSM outgoing call times
      (Maximum Call out Time in seconds)
    • Display accumulated GSM outgoing call times up to now
      (Current Cal Time in seconds)
    • Reset accumulated call out GSM timers
  • Call Features :
    • Tone Generation: Ring, Ring Back, Dial, Busy, call waiting and
    • Out-Band DTMF : RFC2833 and SIP Info
    • Music-on-hold support (via IPPBX or local)
    • Peer to Peer call without SIP Server/IP-PBX
    • Call Forward
    • GSM incoming call forward to assigned IP device
      (SIP number or IP address with port number)
    • SIP IP incoming call to GSM directly (1-stage dial)
    • Support Dial Plan: Add, Drop, and Speed Dial Rule
    • Caller ID
    • Administrative Telnet CLI and HTTP
    • 3 Levels of User Access Right with Password protection
    • Management from WAN enable or disable
    • Provides System Status Logs from webpage
    • Network Status Display : WAN and LAN port Status
    • SIM card, Register and System firmware status display
    • Diagnostics (debug through syslog)
    • Configuration Backup/Restore
    • Firmware updated via provision server
    • Reset to factory Default
    • Support Auto Provision through MAC address
    • Support HTTP, TFTP and FTP as provision server
  • Environmental :
    • Dimension: 9.9(H) × 9.9(W) × 3.2(T) CM
    • Weight:  0.35kg (One unit with packing)
    • Operating Temp. & Humidity
      • Temp.: 0°C~45°C (32°F~113°F)
      • Humidity: 10%~90% relative humidity, non-condensing
    • Power Adaptor:
      • INPUT: AC100V~240V, 50/60Hz
      • OUTPUT: DC 12V, 1A
  • Approvals:
    • CE, FCC, LVD and RoHS
  • Country of origin:
    • Made in Taiwan
  • Packing Accessories
    • WellGate M1         x 1 pcs
    • AC to DC+12V/3A Power adaptor    x 1 pcs
    • 1 meter Ethernet cable                   x 1 pcs
    • Detachable antenna  x 2 pcs
  • Warranty
    • One year



Copyright © 2014. WELLTECH TECHNOLOGY CO., LTD. All Rights Reserved.