| US 7,539,179 B1 | ||
| Scalable packet-switched call control signaling | ||
| Randall Baird, Austin, Tex. (US); and Leo Nieuwesteeg, Plano, Tex. (US) | ||
| Assigned to Cisco Technology, Inc., San Jose, Calif. (US) | ||
| Filed on Sep. 30, 1999, as Appl. No. 9/409,922. | ||
| Int. Cl. H04L 12/66 (2006.01) | ||
| U.S. Cl. 370—356 [370/401] | 58 Claims |
| 1. A method of controlling packet-switched calls, comprising:
terminating a plurality of call signaling connections, each corresponding to one of a plurality of packet-switched calls,
at a packet-switched signaling gateway, where each call signaling connection is packet-switched;
communicating, over a number of sessions smaller than the plurality of call signaling connections, the signaling content of
the call signaling connections from the signaling gateway to a primary media gateway controller;
routing a plurality of packet-switched bearer streams, each corresponding to one of the packet-switched calls, to a media
endpoint controlled by the primary media gateway controller, wherein the media endpoint is a media proxy;
forwarding one of the packet-switched bearer streams from the media proxy to a media gateway also controlled by the primary
media gateway controller; and
prior to the forwarding, modifying the format of the forwarded packet-switched bearer stream within the media proxy.
|