Shopping Cart
0 items

WellGate M4 GSM VoIP Gateway

WellGate M4 GSM VoIP Gateway
Click to enlarge
Price: $480.00
Availability: In Stock
Model: WellGate M4 GSM VoIP Gateway
Manufacturer: WellTech
Average Rating: Not Rated

Qty: Add to Cart
(This product has a maximum quantity of 1000)

WellGate M4 is an 4-SIM GoIP 3G or GSM SIP gateway which allows to connect 4 Lines of GSM/3G with GSM or 3G (base station). This device is suitable for office IP-PBX application at office to office or office to branch office to call between PSTN Line and IP Call. Or, connect to IP Telephony SIP Service provider from/to 3G/GSM mobile network.

To select up to 4 SIP TRUNK Accounts

WellGate M4 is appropriate to use four VoIP SIP Trunk or IP Centrex service or IP-PBX within offices and remote branch offices. One of four SIP Servers (or ITSP Service provider or alternative IP-PBX ) can be configured freely at each 3G or GSM port to make or receive IP Call. It provides 4 service platforms according to your dial number or routes plan.

3G and GSM wireless mobile phone is popular than fixed land line

Some places have difficulty and expensive to deploy fixed land line. Therefore, they consider to install 3G or GSM base SIP gateway rather than FXO land line gateway. There are several advantages to install 3G/GSM SIP IP gateway. For instance, they are quick installation, not any PSTN line lock issue after call was dropped, accurate answer and drop time, and can be moved to any desire place easily.

Flexible Dial plan and Route Plan Features

WellGate M4 provides flexible Dial Plan between 3G/GSM and IP Trunk (SIP Soft Switch). Dial Plan is to configure in what condition the digits can be sent out to/from IP network. The dialing inter-digit time before dialing is configurable to meet local 3G or GSM line. Dial Rule is able to detect the prefix code and maximum digits reached and then dial automatically. The Digit Manipulation (DM) allows you to configure matched prefix code, digits length, start and stop digit position to be replaced digits as well.

Route Plan is to configure the incoming and outgoing call routes which you desired this call to go out or allow to income. For instance, IP incoming call may reach one 3G or GSM line with Priority or Cyclic access. You can also configure IP incoming call by Matched prefix digits, matched dialing number to 3G/GSM line and Matched digit length. For 3G/GSM outgoing call to IP routes, the hunting type supports Priority or Cyclic or Simultaneously to select which SIP trunk ( SIP Proxy Server ) to go. GSM outgoing call routes also support by Matched prefix digits, Matched outgoing SIP Trunk number and Matched digit length. Both direction supports No Answer time out and Backup Routes.

Suit to IP-PBX to access local 3G or GSM Line

WellGate M4 is a SIP IP device to connect with IP-PBX to access local 3G/GSM network. Its telephony features, for instance, Caller ID number and accurate call establish/drop time indication, are easy to integrate with Legend Telephony Line with IP-PBX in office and branch office IP call application. It is compatible with local Telecom network regulation and your office IP network to transmit analog voice between them.




Ethernet port (RJ-45, 10/100 base-T)

1-WAN port, connect to SIP IP Network

1-LAN port connect to PC with NAT (DHCP Server)

Support Bridge, NAT and management mode

Telephony port connect to local 3G or GSM lines (4-SIM cards)

DC +12V power input Jack

LED Indicator for WAN/LAN, System and 3G/GSM, SIM card status

IP Network connection

IPv4 (RFC 791) and IPv6 Simultaneously

IPv6 Auto Configuration (RFC 4862)

IPv6 Only, IPv4 Only or dual stack

MAC Address (IEEE 802.3)

MAC Clone Setting

Vendor Class ID


Static IP

DHCP Client (RFC 2131) for WAN port

DHCP client IP range configure

DHCP Server for LAN port

NAT Server (RFC 1631)

PPPoE Client


DNS Client


URL Filter

IP Filter

MAC Address Filter

Application program Filter

Port Filter

Port Forwarding (TCP, UDP or both)

Bandwidth Control (Download and Upload), Maximum Bandwidth priority setting

UPnP Server at LAN port

Behind NAT, use DMZ for NAT traversal

NTP with time zone (GMT) and Daylight Saving

TCP/UDP (RFC 793/768)

RTP/RTCP (RFC 1889/1890)

IPV4 ICMP (RFC 792),

TFTP Client

VoIP VLAN Support 802.1Q, 802.1P

VLAN ID Range : 2 to 4094

VLAN Priority : 0 to 7 (Highest Priority)

QoS : DiffServ (RFC 2475), TOS (RFC791, 1394)

SIP Protocol :

RFC3261 compliance

SIP UDP Protocol

Support SIP compact Form

Support SIP HOLD Type: Send Only, or Inactive

SIP Session Timer (RFC 4028) configure

Configure SIP local Port to avoid from hacking

Accept Proxy Only: YES(avoid hacking) or NO (P2P call)

SIP QoS Type: DiffServ or TOS

SIP T1, T2, and T3 time configure in msec configure

Invite Linger Timer (msec) configure

General Linger Timer (msec) configure

Cancel General No Response Timer(msec) configure

General Request Timeout Timer(msec) configure

Cancel Invite No Response Timer(msec) configure

Provisional Timer(msec) configure

First Response Timer (msec) configure

Line Congestion code configure

SIP Session Refresher: UAC or UAS

SIP Encryption

MD5 Digest Authentication (RFC2069/RFC2617)

PRACK (RFC3262): Supported or Require


SIP Trunk:

Provide 4 SIP Trunks to register to remote devices

SIP Trunk register Type: Register or Predefine

Register Domain name or IP address.

Proxy Server and Outbound proxy server IP address configure

Proxy Server and Outbound proxy server port number configure

Register Expired time configure

Register TEL Number, User ID, Password and display name

Reject Anonymous Call from SIP Trunk

Outgoing Caller ID: Display Name and User ID

Keep Alive disable or enable (Time configure in second)

Audio Codec :

G.711 A-law/μ-law, G.729A, GSMFR, G.723.1(6.3K, 5.3K)

Select voice codec priority: According to Local or Remote

Voice Payload size (ms) configuration

Silence Suppression


RTP Basic Port configuration

RTP QoS Type : DiffServ or TOS

DTMF Relay: In-band, RFC2833/Fall back to SIP INFO, SIP INFO, RFC2833/Fall back to In-Band

Packet Loss Compensation

Automatic Gain Control

Adaptive/Configurable Jitter Buffer

G.168 Acoustic Echo Cancellation

Configure RTP basic Port

Phone Book (100 records) for P2P calls

Dialing Plan with drop, replace, Insert dialing digits

Support Specified Line Calling

Call Features :

Up to 4-ports connect to 3G or GSM BTS simultaneously

Caller ID recognition

Tone Generation: Ring Back, Dial, Busy, call waiting, ROH, Warning, Holding, Stutter dial tone and disconnect tone

Configure Tone Frequency, Cadence, Level and Cycle

Select Tone specification by Country name List

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

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.

Send and Receive SMS messages for Prepaid inquiry

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

Offer 4 SIM cards Connection (Big SIM card)

Detachable External Antenna:

Impedance: 50 ohms

Antenna Gain: 0.025dBi at 900Mhz,

2.478dBi 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

3G Ports Interface:

Activate or deactivate

3G Phone number configuration

3G Call services: Dial, Answer and Hang up.

Send and Receive SMS messages for Prepaid inquiry

Audio Control: Echo Suppression, Noise Suppression, Side Tone and Gain Control.

3G Bands: 850/900/1800/1900/2100MHz,

Operate on any 3G network to provide voice calls over IP

Offer up to 4 SIM cards Connection (Micro SIM card)

Detachable External Antenna:

Impedance: 50 ohms

Antenna Gain: 0.025dBi at 900Mhz,

2.478dBi at 1800Mhz.

Tx Power: 2 Watts at 850/900 MHz

1 Watt at 1800/1900/2100 MHz

Rx Sensitivity: -108dBm at 850/900 MHz

-107dBm at 1800/1900/2100 MHz

Play voice file to 3G/GSM incoming call

Repeat playing voice file counts to caller at 3G/GSM

Self-recorded voice files to upload

Input(Encode) and Output(Decode) Gain configure in dB

Enter PIN Code of 3G/GSM SIM card

Enter PUK code to Unlock 3G/GSM SIM card.

Limit accumulated 3G/GSM outgoing call times

(Call Time Quota in seconds)

Display accumulated 3G/GSM outgoing call times up to now

(Total Cal Time in seconds)

Clear accumulated 3G/GSM outgoing call times

Reset each 3G/GSM Module to activate 3G/GSM Line

Incoming call HOT Line to desired SIP Trunk number

Or 2-Stage dial to play greeting file.

Routing Plan:

Configure incoming Type: from 3G/GSM or VOIP(SIP Trunk)

GSM Default Route

3G Default Route
VOIP Default Route
Matched Incoming Prefix code
Define matched individual 3G or GSM Line incoming List
Match Incoming digit length
Configure incoming 3G/GSM/VOIP to outgoing VOIP/GSM/3G
Define not answer incoming call timeout in second
Primary Route:
Outgoing routing Type: 3G or GSM or VOIP
Hunting Type(select one 3G/GSM line or Trunk ID to call): Priority, Cyclic or Simultaneously
Routing List to show available 3G/GSM Line or SIP Trunk
Hunting Cycle: to choose 1, 2 or 3 cycles
DM Group: select which DM group to dial out
Backup Route:
Backup route plan once Primary Route failed.
Activate or Inactivate backup Route plan
Provide same feature as Primary route
Dial Plans:
Select Inter digit timeout duration (default: 5 sec)
Start dialing by End of Digit key (default: # key)
Waiting time out of first digit to dial
Matched prefix code and max digits length to dial immediately
Phone Book (Max 100 records limitation)
Phone Book can be Exported or Imported
Phone Book used to make P2P call
Digit Manipulation (Drop and Replace Rule):
3G/GSM incoming call DM Group
VoIP SIP Trunk incoming call DM Group
Backup four DM group configuration:
DM 1 Group
DM 2 Group
DM 3 Group
DM 4 Group
Matched Prefix
Matched digit length
Replace from digit start position until stop digit position
Replace number to configure
Device Status: MAC address, Network Type, IP address of WAN/LAN, IPv6 IP address, and Firmware version.
Line Status: 3G/GSM call status, Not connected reason, RSSI 3G/GSM signal strength, IMEI number (3G/GSM module), IMSI(SIM card number) and Remaining call time.
SIP Trunk Status: Account number, register status and concurrent calls number
Refresh status interval time.
Maintenance: Backup configuration, Restore configuration, Restore Auto provision file, Reset to default, Warm reset and Reboot.
Firmware update from Webpage.
Administrative Telnet, HTTP, and HTTPS
Telnet/HTTPS Service Access limitation from WAN port
Configure Service ports at HTTP, HTTPS and Telnet Services
Enable or Disable HTTP/HTTPS access service
HTTP auto provision through MAC address
HTTP Server IP/DNS address, ID/password and refresh interval
Multilingual Web User Interface
3 Levels of User Access Authority with Password protection at different Web Language (Administrator, Supervisor and User)
Phone Debug Manager: Device Control, Call Control, DB, Verbose
SIP Debug Manager: Register, Call, SIP Message, Others
SNTP Debug Module
Device Debug Module
DSP Debug
Provide 8 Debug Levels:
Provides debug Syslog from desire date/time period
Syslog send to external SYSLOG Server and port
Event notice from Syslog Server and port number configure
Status display: Network, Line, SIP Trunk status
Diagnostics (debug through Syslog Event Notice)
Debug in real time by Telnet
SNMP agent V2/Trap
Configuration Backup/Restore
Dual Firmware Image Backup
Environmental :
Physical Dimension: 19-inch chassis, 1U high, 11 CM depth
Weight: 2.1kg (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, 3A
- Maximum Power Consumption: 15 Watts (1.3A at 12Vdc)
Country of origin: Made in Taiwan
Packing Accessories:
WellGate M4 x 1 pcs
AC to DC+12V/3A Power adaptor x 1 pcs ,Antenna x 4 pcs
19-inch Relay Rack mounting bracket x 2 pcs
Warranty One year
Write Review
Your Name:

Your Review: Note: HTML is not translated!

Rating: Bad            Good

Enter the code in the box below:

WellGate M4 GSM VoIP Gateway
Click to enlarge
WellGate M4 GSM VoIP Gateway
Click to enlarge
WellGate M4 GSM VoIP Gateway
Click to enlarge
WellGate M4 GSM VoIP Gateway
Click to enlarge
WellGate M4 GSM VoIP Gateway
Click to enlarge