WellGate 2504A PoE on WAN4-line FXS SIP IP Gateway

  • PoE on WAN port
  • Dual IP Stack : IPv6 and IPv4
  • Support up to 4 SIP proxy
  • Support different SIP Trunk to
    each FXS line
  • Auto HTTP Provision feature
  • Flexible Routes Plan and Dial Plan



WellGate 2504A is an 4-line FXS gateway with SIP protocol
IP device which allows to connect 4 sets of analog telephone
sets to make or receive VoIP call over Internet or VPN
network through Internet Telephony service provider. This
device is suitable for office user through ITSP service
provider to install at office or branch office to call between
different offices. It also can install at trunk line in front of
digital PBX to migrate digital PBX to IP Telephony call.

To select up to 4 SIP service Accounts

WellGate 2504A is appropriate to use four VoIP Service Providers, IP Centrex service
and 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 line
( FXS port ) to make or receive IP Call. It provides 4 service platforms to select
lowest rate according to your dial number or country.


PoE on WAN port

WellGate 2504A supports PoE on WAN port. It also provides external AC to DC 12V
power adaptor in case of PoE is not available.


Flexible Dial plan and Route Plan Features

WellGate 2504 provides flexible Dial Plan from FXS to IP Trunk (SIP Softswitch). Dial
Plan is to configure in what condition the digits can be sent out to IP network. The dial
inter digit time before dialing is configurable to meet busy users or home user. 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 Ring to FXS port
with Priority, Cyclic or Simultaneously ring . You can also configure IP incoming call by
Matched prefix digits, Matched incoming FXS line number and Matched digit length. For
FXS outgoing call routes, the hunting type supports Priority, Cyclic or Simultaneously
ring and select which SIP trunk ( SIP Proxy Server ) to go. FXS outgoing call routes
also support by Matched prefix digits, Matched incoming FXS line number and Matched
digit length. Both direction supports No Answer time out and Backup Routes.


Suit to IP Telephony Service Provider

WellGate 2504A is a SIP IP device to connect with existing analog telephone set to
make IP call. Its compact design and easy installation allow office user or single user
to make or receive call just like an legend telephone call but less cost. It is compatible
with broadband internet service device such as ADSL/Cable Modem and WiMax/3G
Modem. It helps ISP provider to provide Telephony service to existing customer
without additional cable..



  • Interface:
    • Ethernet port (RJ-45, 10/100 base-T)
      • 1-WAN port, connect to IP Network with PoE
      • Comply with 802.3af.
      • 1-LAN port connect to PC with NAT
    • Support Bridge, NAT and Gateway mode
    • Telephony port (RJ-11 x 4 pcs)
    • DC +12V power input Jack
    • Reset key to return Factory setting
    • LED Indicator for System, SIP and FXS 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), WAN port
    • DHCP Server, LAN port
    • NAT Server (RFC 1631)
    • PPPoE Client
    • DDNS ( DynDNS )
    • DNS Client
    • Firewall
    • URL Filter
    • IP Filter
    • MAC Address Filter
    • Application program Filter
    • Port Filter
    • Port Forwarding
    • Bandwidth Control (Download and Upload), Maximum Bandwidth priority
    • UPnP Server at LAN port
    • Behind NAT, use DMZ for NAT traversal
    • SNTP with time zone and Daylight Saving
    • TCP/UDP (RFC 793/768)
    • RTP/RTCP (RFC 1889/1890)
    • IPV4 ICMP (RFC 792),
    • TFTP Client
    • VLAN Support 802.1Q, 802.1P
    • VLAN ID Range : 2 to 4094
    • VLAN Priority : 0 to 7
    • QoS : DiffServ (RFC 2475), TOS (RFC791, 1394)
  • SIP Protocol :
    • RFC3261 compliance
    • Support up-to 4 SIP Server Register Accounts
    • SIP UDP Protocol
    • Support SIP compact Form
    • Support SIP HOLD Type
    • SIP Session Timer (RFC 4028)
    • MD5 Digest Authentication (RFC2069/RFC2617)
    • Reliability of provisional response PRACK (RFC3262)
    • Early/Delay Media support
    • Offer/Answer (RFC3265)
    • Message Waiting Indication (RFC3842)
    • Event Notification (RFC3265)
    • REFER (RFC3515)
    • Support Outbound Proxy
    • Support Primary and Backup SIP Server
    • Support STUN NAT Traversal
    • Support “rport” parameter (RFC 3581)
  • Audio Codec :
    • G.711 A-law/μ-law, G.729A, G.723.1 (6.3K, 5.3K)
    • Select voice codec priority : Local or Remote
    • Silence Suppression
    • VAD/CNG
    • LEC : Line Echo Canceller
    • Max Echo Tail Length (G.168): 32, 64 and 128ms
    • Packet Loss Compensation
    • Automatic Gain Control
    • In-band/out of band DTMF (RFC4733, RFC2833 / SIP INFO)
    • Adaptive/Configurable Jitter Buffer
    • G.168 Acoustic Echo Cancellation
    • Phone Book ( 50 records ) for peer to peer calls
    • Dialing Plan with drop, replace, Insert dialing digits
    • Select First digit and Inter digit timeout duration (Sec)
    • Selectable Call Progress Tone
    • Support Specified Line Calling
  • Call Features :
    • Caller ID display DTMF (before/after 1st ring) and FSK (before 1st ring ),
      ETSI and Bellcore
    • DTMF Caller ID start and stop BIT configurable
    • Polarity Reversal before Caller ID or not
    • Tone Generation: Ring, Ring Back, Dial, Busy, call waiting, ROH, Warning,
      Holding, Stutter dial tone and disconnect tone
    • Configure Tone Frequency, Cadence, Level and Cycle
    • Global Country Based Tone Specification
    • NAT Traversal support STUN, UPnP and Behind NAT
    • Out-Band DTMF : RFC2833 and SIP Info
    • Flash Time transmit via SIP Info (Enable or Disable)
    • Message Waiting Indication (Stutter Tone Notice)
    • Speed Dialing
    • Call Waiting/Switching between Calls
    • Call Forward (Busy, Unconditional, No Answer)
    • Block Anonymous Call
    • Call Hold
    • Call Transfer
    • Retrieve transfer call from 3rd party by dial Code (default: *#)
    • Flexible Dial Plan
    • Dial Rule : Prefix and Maximum digits, digit position to replace
    • Digit Manipulation (Drop and Replace Rule)
    • Extension Hunting
    • Hot Line
    • Support SIP Trunk up 4 SIP Servers
    • Outgoing SIP Caller ID Selection
    • Accept desired SIP Proxy incoming calls Only
    • Flexible Routing Plan
    • Prefix Match and Length
    • Priority Ring
    • Cyclic Ring
    • Simultaneous Ring
    • Programmable Hunting Cycle
    • Backup Routing with Digit Manipulation
    • Default Routing
    • T.38 FAX
    • Support Peer to Peer Dialing
    • Flash Time Detection: range from 80 to 800 ms
    • ON-HOOK Voltage -48Vdc
    • Configure Ring Cadence, Frequency and Voltage
    • Support Polarity reversal for Billing
    • Service Up to 1 Kilo-meter distance to analog telephone set
    • Generate Current Drop Time (Open Loop Disconnect time)
    • Administrative Telnet CLI and HTTP, HTTPS
    • http provision through MAC address
    • Multilingual Web User Interface
    • 3 Levels of User Access Right with Password protection (Administrator,
      Supervisor and User)
    • HTTP/HTTPS Service Access limitation from WAN port
    • Provides System Status Logs
    • Status display: Network, Line, SIP Trunk status
    • Diagnostics (debug through Syslog Event Notice)
    • Debug in real time by Telnet
    • Auto Provision via HTTP Server
    • Support SNMP V2/Trap
    • Configuration Backup/Restore
    • Dual Firmware Image Backup
    • Reset to factory Default
  • ** Support Welltech proprietary encryption protocol at SIP Signal and
    Voice codec during transmitting to IP network in order to Anti-ISP
    block of VoIP call. This feature only be available with Welltech SIP
    server or SIPPBX6200 IP-PBX

  • Environmental :
    • Physical Dimension: 17.5(W) × 3.2(H) × 12.6(D) CM
    • Weight: 0.5kg (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, 1.5A
      • 8.5 Watts
  • Approvals:
    • CE, FCC (Part 15, Class B), LVD and RoHS
  • Country of origin:
    • Made in Taiwan
  • Packing Accessories
    • WellGate 2504A x 1 pcs
    • AC to DC+12V Power adaptor x 1 pcs
    • CD User Manual x 1 pcs
  • Warranty
    • One year

Copyright © 2010. WELLTECH TECHNOLOGY CO., LTD. All Rights Reserved.