The CorNet-IP protocol is a routing protocol developed by Siemens which is based on existing protocols such as H.323, MGCP, Megaco or RTP and includes the signaling and control functionality required for IP telephony.
CorNet-IP is suitable for internetworking in packet and circuit switched networks. As the protocol includes signaling, it supports decentralized telephony.

References

Interworking with a single numbering plan, call control, feature transparency, enhanced call display, access to centralized applications (including contact centers and messaging applications) regardless of the communications platform.
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