| Patent application number | Description | Published |
|---|
| 20100316048 | DYNAMIC SIP MAX-HOP SETUP FOR IMS - A device forwards in a network, a session setup request from an originating user device toward a destination user device and intercepts a too many hops error message from a network element to the originating user device. The device also automatically sends, in response to the error message, a search request message to determine a correct number of hops from the originating user device to the destination user device and resets a Max-Forwards value for the session setup request based on the determined correct number of hops. The session setup request with the determined correct number of hops may be resent on behalf of the originating device without the too may hops error ever reaching the originating device. | 12-16-2010 |
| 20110040882 | DYNAMIC HANDLER FOR SIP MAX-SIZE ERROR - A network device forwards a Session Initiation Protocol (SIP) setup request from an originating user device toward a destination user device via multiple network elements and intercepts a message-too-large error message sent from one of the multiple network elements to the originating user device. The network device automatically splits the session setup request into smaller SIP messages, where a size of each of the smaller SIP messages is less than or equal to a particular size of message that the network element will accept. The network device then notifies another one of the multiple elements that the session setup request has been split into the smaller SIP messages and sends, via the multiple network elements, the smaller SIP messages toward the destination user device on behalf of the originating device. | 02-17-2011 |
| 20110051712 | INTERNET PROTOCOL MULTIMEDIA SYSTEM (IMS) MOBILE SESSION INITIATION PROTOCOL (SIP) AGENT - A first phone obtains an identifier of a second phone from a phone list, and sends a request for the second phone's Session Initiation Protocol (SIP) type to a remote server. The first phone receives the second phone's SIP type from the remote server, and sends a message to one or more nodes in a network, based on the received second phone's SIP type, for a SIP session between the first phone and the second phone. | 03-03-2011 |
| 20110142045 | IPv6 VLAN TAG PACKET TRANSPORT OPTIMIZATION - A network device receives an Ethernet frame sent from an originating device toward a destination device, determines whether the frame includes an Internet Protocol version 6 (IPv6) payload, and determines whether the frame is one of an ingress frame or an egress frame for a virtual local area network (VLAN). The network device determines a VLAN tag for the frame when the frame is an ingress frame and inserts the VLAN tag in a portion of a source internet protocol (IP) address field or a destination IP address field of the IPv6 payload, when the frame is an ingress frame. The network device extracts a VLAN tag from a portion of the source IP address field or a destination IP address field of the IPv6 payload, when the frame is an egress frame. The frame is then output to one of the VLAN or the destination device. | 06-16-2011 |
