What is
SIGTRAN?
SIGTRAN
Signaling Transport (SIGTRAN) is
an Internet Engineering Task
Force (IETF) standard for
transporting Public-Switched
Telephone Network (PSTN)
Signaling System 7 (SS7) traffic
over IP networks.
SCTP in SIGTRAN
SIGTRAN's transport protocol,
Stream Control Transmission
Protocol (SCTP), allows carriers
to use the IP infrastructure to
transport SS7 telephony traffic
over an IP network.
Interoperability
The generic design of SCTP
provides a reliable transport
delivery mechanism for various
multimedia and wireless
frameworks such as H.323,
MGCP, H.248/MEGACO, SIP and
3G.
SIGTRAN & Gateways
SCTP supports node-to-node
transport of SS7/ISDN traffic
between Signaling Gateways
(SGs)/Media Gateways (MGs)
and Media Gateway
Controllers (MGCs).
SCTP Associations
Stream Control Transmission
Protocol works on the basic
concept of associations and
streams.
An SCTP Association:
• is similar to a TCP connection
• supports multiple IP addresses at either
or both ends (multi-homing)
• supports multiple logical streams (multistreaming)
• provides sequenced delivery for user
datagrams within a single stream
Signaling Gateway
Any Questions?