System and method for interfacing legacy IP-PBX systems to SIP networks
AssigneeAlcatel Lucent
InventorsMichael Wengrovitz, Andrew Nelson
Life of this patent
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Abstract
A system and method for integrating a legacy IP-PBX to a session initiation protocol (SIP) network supporting one or more SIP sets. A SIP-PBX proxy server coupled to the legacy IP-PBX and the SIP network maintains a logical IP set for each SIP set on the SIP network. The logical IP set is configured to maintain IP-based signaling and media connectivity with the legacy IP-PBX. The SIP-PBX proxy server receives media directed to a logical IP set associated with a particular SIP set, and redirects the media to the particular SIP set. In doing so, the SIP-PBX converts messages that adhere to a private, vendor-specific protocol, to messages that adhere to the SIP protocol
Claims19
A data communications system integrating a voice switch adhering to a first protocol with a network of one or more first devices adhering to a second protocol, the system comprising:
- a server coupled to the voice switch and the network of one or more first devices, the server maintaining for at least one of the first devices a logical device adhering to the first protocol, the server further receiving media directed to the logical device and redirecting the media to the first device.
In a data communications system including a voice switch adhering to a first protocol and one or more devices adhering to a second protocol, a server coupled between the voice switch and the one or more devices, the server comprising:
- means for receiving from the voice switch a first message indicative of a first communication port to be used by one of the devices for receiving media;
- means for receiving from the device a second message indicative of a second communication port to be used by the device for receiving the media;
- and
- means for reconciling a difference between the first communication port and the second communication port.
A method for integrating a voice switch adhering to a first protocol with a network of one or more devices adhering to a second protocol, the method comprising:
- receiving from the voice switch a first message indicative of a first communication port to be used by a particular device for receiving media;
- receiving from the particular device a second message indicative of a second communication port to be used by the particular device for receiving the media;
- and
- reconciling a difference between the first communication port and the second communication port.
Dependencies are inferred from the claim text.