Internal Messages

Messages Added By This Package

This section defines messages sent over the IPC shared memory message bus by applications that are included in the n2sip package.

These message formats are documented for the benefit of application developers and maintainers. Specifically this Technical Guide defines:

• SCC-... messages (sent between LhoSipApp SIP Controller and the Lua scripts running in the LogicApp).
• RTP-... messages (sent between LhoSipApp SIP Controller and the RtpApp local media server).

Base Messages

Note that the applications supplied in this n2sip package also rely heavily on the messages defined in the underlying n2svcd framework. E.g. all of the INAP messages used by the N2IVR (in INAP-controlled mode) to communicate with the SCP platform are sent using the standard TCAP messages which are defined by the SISGTRAN Application.

Refer to the core n2svcd Technical Guide for more information.