摘要:
A system, method, and computer program product through which address resolution is performed for nodes of a network that are behind a network address translator (NAT). A determination is made upon the initiation of a communication session as to whether one or more of the nodes included in the session are behind a NAT. Based on the determination, information is exchanged from an independent application server to the nodes included in the session so as to resolve the addressing problems introduced by the NAT. The invention is applicable in applications including, but not limited to, IP telephony, and applications complying with the session initiation protocol (SIP).
摘要:
A VoIP server may provide voice-based services when a VoIP device dials a preconfigured number (e.g., “##999”). Similarly, a VoIP device having an additional display and/or function keys may signal that a voice-command communications channel should be opened between the VoIP device and the VoIP server in a different way (e.g., using a dedicated button). The VoIP server recognizes the number being called as a request for voice-based services as it would recognize a call to a voicemail extension as a request for voicemail services. Thus, the VoIP server intercepts the outgoing call and directs the call to itself to begin providing voice-based services (e.g., voice dialing and calendaring services).
摘要:
A system, method, and computer program product through which address resolution is performed for nodes of a network that are behind a network address translator (NAT). A determination is made upon the initiation of a communication session as to whether one or more of the nodes included in the session are behind a NAT. Based on the determination, information is exchanged from an independent application server to the nodes included in the session so as to resolve the addressing problems introduced by the NAT. The invention is applicable in applications including, but not limited to, IP telephony, and applications complying with the session initiation protocol (SIP).