Calling method for node across zones in ip network system

• US 20040186913A1
• Filed: 02/27/2004
• Published: 09/23/2004
• Est. Priority Date: 08/29/2001
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Xie, Jinsong
• Granted Patent: US 8,032,638 B2
• Time in Patent Office: Days
• US Class Current: 709/238
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The invention discloses a calling method for endpoint across zones in IP network system. The method implements, simply and conveniently, endpoint addressing and calling across GK zones. The method includes: pre-registering an E.164 alias of every endpoint of each gatekeeper (GK) to its own GK in IP network system, wherein the E.164 alias being consisted of a unique zone prefix in the IP network system and a unique number of said endpoint in its own GK; a calling endpoint directly calling a called endpoint with the E.164 alias of the called endpoint. The method further includes: the calling GK extracting the prefix from E.164 alias of the called endpoint and asking the called GK to translate IP address of the called endpoint; the called GK translating IP address of the called endpoint and returning to the calling GK; the calling GK informing said calling endpoint about IP address of said called endpoint; the calling endpoint sending setup signaling to said called endpoint according to the translate IP address to initiate a call.

Claims

1. A calling method for endpoint across zones in IP network system, comprising:

A. pre-registering an E.164 alias of every endpoint of each gatekeeper (GK) to its own GK in IP network system, wherein the E.164 alias being consisted of a unique zone prefix in the IP network system and a unique number of said endpoint in its own GK;

B. a calling endpoint directly calling a called endpoint by using E.164 alias of the called endpoint;

2. The calling method according to claim 1, wherein step B further comprising:

a. a GK of said calling endpoint having received an ARQ (Admission Request) signaling from said calling endpoint;

b. the GK of said calling endpoint extracting a prefix from the E.164 alias of the called endpoint and searching an IP address of a GK of said called endpoint that corresponds to the prefix, and then according to the IP address, sending a LQR signaling to the GK of said called endpoint to ask for translating IP address of the called endpoint;

c. the GK of said called endpoint translating IP address of the called endpoint according to E.164 alias of the called endpoint and responding to the GK of said calling endpoint by a LCF signaling;

d. the GK of said calling endpoint informing said calling endpoint about IP address of said called endpoint by an ACF signaling;

f. the calling endpoint sending a Q.931 calling setup signaling to said called endpoint according to the IP address of said called endpoint, and initiating a call.