作者: Niral Sheth , Chaoxin Qiu , Arshad Khan
DOI:
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摘要: A system that incorporates teachings of the present disclosure may utilize, for example, a method involving receiving from first communication device service request while providing back-up services to an out-of-service network element, detecting deficiency in call state information process request, transmitting error message prevents termination active Internet Protocol (IP) path between and second device, alternate IP communicating devices which resolves information. Additional embodiments are disclosed.