AS-SIP- what is it?

What is AS-SIP?

AS-SIP is the DoD Information System Network’s standard signaling protocol that provides end-to-end Assured Services.  REDCOM’s software and hardware platforms are built to DoD and industry standards, certified by the DISA Unified Capabilities Certification Office, and are interoperable with all other AS-SIP/ industry standard SIP equipment, including end instruments.


AS-SIP facilitates essential DoD features:

Multi-Level Precedence and Preemption (MLPP):

  • Establishes communications priorities
  • Ensures system and network access and control
  • Manages precedence and preemption assuring end-to-end communications connectivity

Secure Real-Time Transport Protocol (SRTP):

  • Enables encrypted communications

Transport Layer Security (TLS):

  • Enables encrypted communications

Differentiated Services Code Point (DSCP):

  • Traffic management through priority packet routing

Traffic engineering:

  • Assured Services Access Control (ASAC)
  • Dynamic ASAC (DASAC).

REDCOM systems provide secure and non-secure interoperability between:

  • AS-SIP end instruments
  • Softphones
  • Cell phones
  • Satellite phones
  • GSM phones
  • VoIP end instruments
  • Radios
  • Legacy (TDM) equipment
  • Magneto crank-phones