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What is SS7? Signaling System 7 is a networking protocol employed by traditional telephony carrier networks to control and manage the establishment and dismantling of voice telephone calls. SS7 is a common channel signaling (CCS), which means the call setup and call teardown information for multiple phone calls is carried on a separate channel from the voice traffic. In contrast, the channel-associated signaling (CAS) approach assigns a signaling channel to each phone call individually.

What is an SS7 gateway? An SS7 gateway is a networking device positioned within a carrier core network to provide protocol translations between traditional telephony signaling and modern voice-over-IP signaling (H.323 or SIP (session initiation protocol). Today's telco service providers need to reduce costs when interconnecting with other carriers as they build out their network footprints in order to transport voice traffic across their IP backbones. That's why so many service providers are adding VoIP capabilities to their SS7, SIGTRAN, and Stream Control Transmission Protocol (SCTP) networks. As a viable replacement for the recently end-of-life (EOL) Cisco PGW 2200 SS7/C7 solution, Patton's SmartNode 10K series of SS7 Media Gateways enable delivery of SS7-to-SIP and H.323 VoIP services. SN10K solutions bridge voice traffic between emerging VoIP telephony networks and the traditional public switched telephone network (PSTN), which is based on time-division multiplexing (TDM) with SS7 signaling or SCTP and SIGTRAN protocols.

Order the Free White Paper Introduction to SS7 Signaling


Show Me: SS7 Media Gateways

 
 

SS7 Gateway for 512 to 32,768 calls

SmartNode 10300 SS7 Media Gateway
Scaling from 512 to 32,768 calls with the industry's lowest operating cost, the SmartNode 10300 VoIP Gateway is a multi-unit, carrier-grade TDM-over-IP SS7 media gateway that is 100% redundant for maximum reliability. The SN10300 Series SS7 media gateway enables VoIP services delivery over traditional time-division multiplexing (TDM) networks with a built-in SIGTRAN SS7 protocol stack.

SIGTRAN SS7 Media Gateway for 512 to 2,048 TDMoIP calls

SmartNode 10200 SS7 Media Gateway
Supporting 512 to 2,048 calls, the carrier-grade SmartNode 10200 SS7 media gateway offers lowest operating costs for SS7 and SIGTRAN protocol signaling, connectivity, and transcoding. The SN10200 SS7 gateway provides SIGTRAN SS7 stack to bridge VoIP services between the traditional PSTN and emerging SIP-over-IP telephony networks.

SS7 TDM+VoIP Gateway with T1/E1/J1

SmartNode 10100
Supporting 128 to 256 calls, the carrier-grade SmartNode 10100 SS7 media gateway delivers streamlined convergence between TDM and SIP-over-IP telephony with SS7/SIGTRAN protocol signaling, connectivity, and transcoding in one device. The SmartNode 10100 SS7 Gateway delivers SIP-to-SS7 and H.323 VoIP services by converging traditional TDM/SS7 signaling with emerging SIP-over-IP telephony.
 

Teach Me: What is a SS7 Media Gateway?

 
Positioned in the core or edge of the telecom carrier network, SS7 media gateways provide a built-in sigtran/SCTP and SS7 protocol stack that enables service providers to deliver SIP-over-IP (VoIP) services while maintaining the quality and the reliability of traditional TDM telephony networks. Service providers require T1/E1/J1 interconnections with other providers. A good SS7 media gateway must rapidly establish such interconnections with the flexibility to configure and support concurrent use of ISDN, SS7/C7, CAS (R2), SIP, and SIGTRAN signaling protocols.

Typical SS7 Gateway Application
The SmartNode 10200 can be used as a carrier CPE that provides SIP trunks to large corporations. Supported business scenarios include large legacy PBX, outsourced call center with overseas operations, large legacy-based call centers, IP migration for large call centers or large-enterprise phone systems.


SS7 Gateways that Work
At Patton Electronics, we have developed a comprehensive range of SS7 gateways to address the specific requirements of a wide variety of SS7 to SIP-over-IP voice applications. Supporting multiple signaling protocols, the SN10K SS7 gateways provide a rich variety of business communications services-from ISDN telephony to Voice-over-IP (VoIP), SIP trunking, and Unified Communications (UC). Providing flexible N+1 redundancy options, Patton's SN10K solutions offer network architecture with no single point of failure. The SN10K series eliminates costly Media Gateway Controller (MGC) requirements by simultaneously supporting SS7, ISDN and SIP signaling in a single device. The simplified network architecture lowers operation and maintenance costs as well as capital equipment expense.

SS7 Gateway Terminology
Short Glossary of Related Acronyms and Terms
CAS - Channel Associated Signaling
CCS - Common Channel Signaling
ICR - Internet Call Router: Sometimes referred to as Internet Offload, the ICR is a network element used in "post-switch" off-load architecture.
SCP - Service Control Point: An SEP that acts as a database to provide information to another SEP for processing and/or routing network calls
SEP - Signaling End Point: An SP, (NOT an STP) that serves as a source or a sink for CCS messages
Signaling Gateway - A networking device that exchanges SS7 messages between a Voice Over Packet (VOP) network and a traditional PSTN network
Signaling Link - A connection between adjacent Signaling Points (SPs) in the CCS network
SP - Signaling Point: A network entity that transmits, receives, and processes CCS / SS7 messages. An SP may be a Signaling End Point (SEP) or a Signaling Transfer Point (STP)
SS7 - Signaling System Seven
STP - Signaling Transfer Point: An SP that performs message routing functions and switches messages between SEPs
Switch - An SEP that can switch end-user voice or data calls.

SS7 Gateway Synonyms
Signaling Gateway
SIGTRAN Gateway



 

Help Me: SS7 Media Gateway Techincal Help

 
Patton offers an extensive online library of technical information to help you get your SmartNode SS7 gateway up and running quickly and easily. Patton's web-based FAQs, configuration notes, and application notes provide the detailed knowledge you need to install, configure, troubleshoot and maintain your Patton SS7 signaling and voice media gateway. And these helpful resources are all free right here on www.patton.com. Patton stands behind our high-quality SS7 Gateway products-world-renowned for set-it-forget-it reliability and stability-with live email and phone support plus lifetime downloadable software updates absolutely free of charge.
 
 
 
SS7 Gateways
SmartNode, SN10100
4 to 16 x T1/E1/J1 Media Gateway
SmartNode, SN10200
16 to 64 x T1/E1/J1, 1 to 3 DS3, or 1 OC3/STM-1 Edge Media Gateway
SmartNode, SN10300
16 to 1024 x T1/E1/J1, 1 to 48 DS3, or 1 to 16 OC3/STM-1 Edge/Core Media Gateway
 
 
 
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