Method and network element for voice-over-IP (VoIP) communications in a mobile IP network
First Claim
1. A method performed by one or more network elements for establishing a voice-over-IP (VoIP) communications session between a first communication device and a second communication device, the method comprising:
- receiving a request from the first communication device to invite the second communication device to participate in a VoIP session, the second communication device being identified in the request by a network identifier;
relating the network identifier to a mobile IP (MIP) address of the second communication device and a second IP address, the second IP address indicating either a point-of-attachment of the second communication device to a wireless access network or a care-of-address of a domain of the wireless access network in which the second communication device is located;
sending an invitation to the MIP address of the second communication device, the invitation including a MIP address of the first communication device and a first IP address;
receiving a response to the invitation from the second communication device;
modifying the response to include a first IP header that includes the MIP address of the second communication device and a second IP header to include the second IP address; and
forwarding the modified response to the first communication device, wherein after receipt of the modified response, the first communication device is configured to establish an IP connection for a VoIP session with the second communication device using the MIP address of the second communication device and the second IP address.
1 Assignment
0 Petitions
Accused Products
Abstract
A method is performed by one or more network elements for voice-over-IP (VoIP) communications. The method includes receiving a request from a first mobile device to invite a second mobile device to participate in a VoIP session. The second device may be identified in the request by a network identifier. The network identifier is related to a mobile IP (MIP) address of the second device and a second IP address. An invitation is sent to the MIP address of the second device which may include a MIP address of the first device and a first IP address. A response to the invitation may be received from the second device. The response may be modified to include a first IP header that includes the MIP address of the second device and a second IP header to include the second IP address. The modified response is forwarded to the first device. After receipt of the modified response, the first device is configured to establish an IP connection for VoIP communication with the second device.
-
Citations
33 Claims
-
1. A method performed by one or more network elements for establishing a voice-over-IP (VoIP) communications session between a first communication device and a second communication device, the method comprising:
-
receiving a request from the first communication device to invite the second communication device to participate in a VoIP session, the second communication device being identified in the request by a network identifier; relating the network identifier to a mobile IP (MIP) address of the second communication device and a second IP address, the second IP address indicating either a point-of-attachment of the second communication device to a wireless access network or a care-of-address of a domain of the wireless access network in which the second communication device is located; sending an invitation to the MIP address of the second communication device, the invitation including a MIP address of the first communication device and a first IP address; receiving a response to the invitation from the second communication device; modifying the response to include a first IP header that includes the MIP address of the second communication device and a second IP header to include the second IP address; and forwarding the modified response to the first communication device, wherein after receipt of the modified response, the first communication device is configured to establish an IP connection for a VoIP session with the second communication device using the MIP address of the second communication device and the second IP address. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A network element configured to establish a voice-over-IP (VoIP) communications session between a first communication device and a second communication device, the network element configured to:
-
receive a request from the first communication device to invite the second communication device to participate in a VoIP session, the second communication device being identified in the request by a network identifier; relate the network identifier to a mobile IP (MIP) address of the second communication device and a second IP address, the second IP address indicating either a point-of-attachment of the second communication device to a wireless access network or a care-of-address of a domain of the wireless access network in which the second communication device is located; send an invitation to the MIP address of the second communication device, the invitation including a MIP address of the first communication device and a first IP address; receive a response to the invitation from the second communication device; modify the response to include a first IP header that includes the MIP address of the second communication device and a second IP header to include the second IP address; and forward the modified response to the first communication device, wherein after receipt of the modified response, the first communication device is configured to establish an IP connection for a VoIP session with the second communication device using the MIP address of the second communication device and the second IP address. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A method for voice-over-IP (VoIP) communications comprising:
-
receiving a request at a network element from a first communication device to invite a second communication device to participate in a VoIP session, the second communication device being identified in the request by a network identifier; relating the network identifier to a mobile IP (MIP) address of the second communication device and a second IP address; sending an invitation to the MIP address of the second communication device, the invitation including a MIP address of the first communication device and a first IP address; receiving a response to the invitation from the second communication device; modifying the response to include a first IP header that includes the MIP address of the second communication device and a second IP header to include the second IP address; and forwarding the modified response to the first communication device, wherein after receipt of the modified response, the first communication device is configured to establish an IP connection for a VoIP session with the second communication device using the MIP address of the second communication device and the second IP address, wherein the first IP address indicates a point-of-attachment of the first communication device to a wireless access network; and wherein the second IP address indicates a point-of-attachment of the second communication device to the wireless access network. - View Dependent Claims (31, 32, 33)
-
Specification