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SIGTRAN Software Modules
The Adax Protocol Software (APS) SIGTRAN suite has been designed for
Convergence, Wireless and Intelligent Networks. These protocols can
be used to build Softswitches, Signaling Gateways or Media Gateway
Controllers in the VoIP domain.
SCTP
SCTP (Stream Control Transport Protocol) is defined by IETF RFC2960
as the transport layer to carry signaling messages over IP networks.
Adax SCTP/T is compliant with IETF RFC2960 and RFC3309 and is implemented
in the OS kernel to provide a transport signaling framework for IP
networks that enhances the speed and capability of SSCS/HSL and can
be deployed over T1/E1, Ethernet and ATM OC3 physical media interfaces.
M2PA
M2PA is designed to transport SS7 MTP-3 signaling messages over IP
using the services of Stream Control Transmission Protocol (SCTP)
and uses any underlying high-speed data transmission technology (ATM,
T1/E1, wireless etc.) to build next generation SS7 networks over
IP. The immediate benefits of this is that current upper layer SS7
applications can run on new high-speed IP signaling networks without
software change, maximizing performance of the solution without increasing
costs and protecting the investment in the application.
M2UA
Defined by RFC 3331 M2UA is a protocol for the backhauling of SS7 MTP3
messages over an IP network and is used between a Signaling Gateway
(SG) and a Media Gateway Controller (MGC) in VoIP networks. M2UA
provides an interface between MTP3 and SCTP that enables MTP3 applications
to transparently operate over an underlying transport service of
SCTP and IP instead of MTP2. This interface provides transparent
connectivity between traditional circuit switched SS7 signaling points
and Next Generation, IP-enabled signaling elements, such as a SoftSwitch
or Media Gateway Controller. Adax provides an M2UA product that can
be used in an ASP or SGP role
M3UA
M3UA is designed to transport SS7 MTP-3 signaling stacks over an IP
Network and provides a seamless operation of MTP-3 – User peers
(ISUP, SCCP, TCAP and TUP) in both SS7 and IP domains. In an all
IP network it operates in a point to point configuration, known as
an IPSP (IP Signaling Point). Specifically M3UA is used for interworking
packet switched and circuit switched networks at the Signaling Gateway
or Softswitch. Using M3UA, Signaling Gateways can be configured to
function as an SS7 SEP (Signaling End Point) or STP (Signaling Transfer
Point). Because of its inbuilt flexibility M3UA has been adopted
by the 3G consortium as the standard for carrying SS7 over IP in
3G networks. Adax offers an M3UA product that can be used in an ASP
or SGP role.
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