Number portability compliance can add layers of complexity to call routing, in some cases compounding the problem of an already-complex system. Sonus Networks has a simpler solution to the portability problem: centralized call routing. With the Sonus Number Portability solution, telephony operators can achieve complete compliance in as little as two months and without upgrading their legacy switches or signaling networks.
What sets the Sonus solution apart is its simplicity and flexibility. It's simple because it shifts the network's call routing logic to a single, central location. Call attempts enter the network and query a single device (the Sonus PSX server) which in turn finds the port-corrected address from the appropriate database inside or outside the network and routes the call accordingly. It's flexible because it supports a wide variety of call scenarios: local number portability, mobile/wireless number portability, ENUM, INAP, SS7, central clearing houses and more.
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