IP TELEPHONE TERMINAL AND PROGRAM

PROBLEM TO BE SOLVED: To enable it to use efficiently a call control server having high priority. SOLUTION: The priority of respective SIP servers 21, 22 and the use propriety state are managed by an IP telephone terminal 10 as server information 15B in a storage 15. When transmission is conducted t...

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Bibliographic Details
Main Authors ABIKO HIROSHI, SHIMIZU TAKASHI, SASAUCHI MASARU
Format Patent
LanguageEnglish
Published 07.09.2006
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
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Summary:PROBLEM TO BE SOLVED: To enable it to use efficiently a call control server having high priority. SOLUTION: The priority of respective SIP servers 21, 22 and the use propriety state are managed by an IP telephone terminal 10 as server information 15B in a storage 15. When transmission is conducted to a desired destination terminal from the IP telephone terminal 10, a usable SIP server is selected, based on the priority of the server information 15B so as to send an origination request message. When a SIP server does not answer to this, unavailable state of the SIP server is set to the server information 15B, and terminal registration processing to the SIP server is started. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20050048515