• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: RealTone Technologies,Inc
  • Model Number: WSS4-4O
  • Type: VoIP Gateway
  • Product name: VoIP Gateway
  • Other name: Voice Gateway
  • Popular name: IAD/ATA
  • Colour: Black
  • Certification: FCC CE
  • Origin: Made in China

Packaging & Delivery

Packaging Details: (H*W*D):4.4*23*32cm;
Delivery Detail: 3days
 PBX Gateway Main Applications
1,Remote SIP access gateway for IP-PBX,example asterisk based on IPPBX.
IP based wide area PBX for enterprise, government branches and schools
VoIP Long Distance application for IP phone supermarkets and enterprises
Carrier primary and secondary line service
Small and home offices, Hotel, Call center
,48,72,96 FXO ports for calling card, call termination...
VoIP Protocol:SIP V2(RFC3261);MGCP(RFC2705),TISPAN(IMS specialty)
OffHook Detection: FXS Loop Start, DDI (Hong Kong)
DTMF: SIP INFO;RFC2833 DTMF Relay; In-Band;
Codec:G.711Alaw; G.711 ulaw; G.729A;G.723.1;GSM; iLBC;
Echo cancellation: G.168; Tail Length 8/16/32 milliseconds;
Calling Control:Called/Calling Number Mapping; Line Hunting;
FAX Processing:T.38 FAX Relay, T.30;
Billing:RADIUS Interface; Polarity Reverse
Configuration:Web Based User Interface, Unified Network Management;
 Other Special Feature
FXO Bypass Line: A bypass FXO line is selected during a network failure or power outage;
Auto Dial:DTMF mode
Dual Telephone Number: Each line can be configured as a PSTN number and an extension number
Off-hook Detection: Loop start
CPU:Motorola Power PC 852
Flash Memory: 8Mb;
System Memory:32Mb;
Maximum User Line:3000 Meters;
Input Voltage100-240 AC; 50-60Hz;Input current 1AMP max);
FXS/FXO port connector:Champ 50
Dimension (H*W*D):195*118*24mm
 WSS8 Serires:
WSS4-4S4FXS ports,Support SIP, MGCP, PPPoE, T38/T30
WSS8-8S8FXS ports,Support SIP, MGCP, PPPoE, T38/T30
WSS4-4O4FXO ports,Support SIP, MGCP, PPPoE, T38/T30
WSS8-8O8FXO ports,Support SIP, MGCP, PPPoE, T38/T30
WSS4-2S/22FXS+2FXO ports,Support SIP, MGCP, PPPoE, T38/T30
WSS8-4S/44FXS+4FXO ports,Support SIP, MGCP, PPPoE, T38/T30
WSS8-6S/26FXS+2FXO ports,Support SIP, MGCP, PPPoE, T38/T30


Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland)
Transaction Level:
Supplier Assessments:
1 Transactions 80+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $31,000
Learn More