M2PA (MTP-2 Peer to Peer Adaptation Layer) is a protocol for supporting the transport of SS7 MTP3 and SS7 User Signaling (e.g. ISUP or SCCP messages) over IP using the services of the Stream Control Transmission Protocol (SCTP). This is predominantly an all IP domain signaling protocol.
It can be used to provision seamless operation of the MTP-3 and SS7 User peers using the IP transport service. This SIGTRAN signaling protocol would be used between two IP-based signaling applications. The M2PA signaling protocol enables a signaling node (STP, SEP or SCP) to use SS7 signaling over IP with least possible impact on the signaling layers MTP3 and above.
Sure Speed M2PA is a high performance implementation of M2PA protocol (IETF RFC 4165). It is based on our proprietary Sure Speed framework that ensures a high level of performance for all our protocol implementations.


  • Supports the functionality specified in RFC 4165
  • Designed to be transport layer independent. It can be easily used over SCTP, TCP, UDP or any other transport layer like UDPLite
  • SIGTRAN is being used in GSM/UMTS networks also, apart from other SS7 networks
  • In built memory manager for avoiding any memory allocations during run time
  • In built timer management with milliseconds granularity
  • Can be easily compiled over SOLARIS, LINUX and other UNIX like OSes
  • Sample Application runs over SCTP and UDP. SCTP used is LK-SCTP

Sure Speed M2PA is feature rich and highly scalable to fulfill requirements of modern telecommunication networks. Following are delivered as part of Sure Speed M2PA Software Package:

  • Software Library
  • Technical support; Immediate patch releases for bugs
  • Programmer's manual
  • Example source code

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