Voice-over-IP (VoIP) services are converging on SIP and RTP for signaling and real-time media delivery respectively. ZXTM can proactively manage SIP traffic to deliver:
High availability and failover across SIP proxy servers;
Server draining for easy, fault-free planned maintenance;
Capacity scaling;
Gatewaying between disparate SIP networks, e.g. IPv4 and IPv6;
Innovative differentiated services.

ZXTM 5.0 manages SIP traffic, load-balancing across SIP proxy servers
Although SIP is an IETF standard, many implementations and extensions exist and mutual compatibility between different user agents cannot always be assured. Furthermore, organizations who wish to deploy advanced, differentiated SIP services need deep visibility and management of SIP traffic. ZXTM’s full application-level inspection, driven by the TrafficScriptTM programming language, makes it possible to compensate for any differences in behavior between applications and to rapidly prototype and deploy differentiated SIP services.
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