Establishing call sessions between terminals through plural switch systems
First Claim
1. A method of establishing a call session over a packet-based network, comprising:
- receiving, in a first switch, a call request over the packet-based network from a first terminal associated with a logical identifier, the call request targeting a second terminal coupled to a second switch;
storing, in the first switch, information relating to features of the first terminal, the information associated with the logical identifier;
sending, from the first switch, a request over a packet-based trunk to the second switch in response to the call request; and
sending, from the first switch to the first terminal, a media connection request containing a network address of the second terminal to enable the first terminal to establish a media path with the second terminal over the packet-based network.
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Accused Products
Abstract
A communications system includes a first switch and a second switch coupled to a packet-based network. A first set of network terminals are coupled to the first switch, and a second set of network terminals are coupled to the second switch. Each of the terminals is associated with a virtual terminal number (VTN). Each of the first and second switches store profile information associated with VTNs of the terminals. The profile information relate to the capabilities or features of the network terminals. The switches communicate signaling over a packet-based trunk, or virtual trunk, that is established on the packet-based network. Each switch sends messages to their associated terminals to establish media paths over the packet-based network to establish a call session.
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Citations
23 Claims
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1. A method of establishing a call session over a packet-based network, comprising:
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receiving, in a first switch, a call request over the packet-based network from a first terminal associated with a logical identifier, the call request targeting a second terminal coupled to a second switch;
storing, in the first switch, information relating to features of the first terminal, the information associated with the logical identifier;
sending, from the first switch, a request over a packet-based trunk to the second switch in response to the call request; and
sending, from the first switch to the first terminal, a media connection request containing a network address of the second terminal to enable the first terminal to establish a media path with the second terminal over the packet-based network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21)
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14. A switch system for establishing calls over a packet-based network, comprising:
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an interface adapted to communicate over the packet-based network;
a controller communicatively coupled to the interface and adapted to receive a call request from a first terminal, the first terminal associated with a logical identifier, the call request targeting a second terminal that is coupled to a second switch system, the controller adapted to further send signaling to the second switch system over a packet-based trunk provided over the packet-based network; and
a storage unit containing information relating to features of the first terminal, the information associated with the logical identifier of the first terminal.
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22. An article comprising at least one storage medium containing instructions that when executed cause a first switch to:
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receive a request over a packet-based network from a first terminal, the terminal associated with a logical identifier;
access a profile associated with the logical identifier; and
use information in the profile to send signaling to a second switch to establish a call session with a second terminal.
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23. A data signal embodied in a carrier wave and comprising instructions that when executed cause a first switch to:
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receive a call request over the packet-based network from a first terminal associated with a logical identifier, the call request targeting a second terminal coupled to a second switch;
store information relating to features of the first terminal, the information associated with the logical identifier;
send a request over a packet-based trunk to the second switch in response to the call request; and
send a media connection request to the first terminal containing a network address of the second terminal to enable the first terminal to establish a media path with the second terminal over the packet-based network.
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Specification