| 摘要 |
PROBLEM TO BE SOLVED: To provide an IP-PBX capable of correctly delivering type information of an outgoing terminal to a post-conversion signal when converting an IAM signal or an SIP message to another signal and transferring it.SOLUTION: A switching device comprises: a first storage unit which associates a routing label of an IAM signal with a location containing terminal type information; and a second storage unit which associates a notation of terminal type information of the IAM signal with a notation of terminal type information of an SIP message. The first conversion unit acquires terminal type information from the location acquired from the first storage unit on the basis of a routing label of the arriving IAM signal, acquires a notation of the terminal type information of the SIP message using the second storage unit, and inserts the notation into the SIP message. The second conversion unit determines a routing label to be inserted into the IAM signal on the basis of destination terminal information of the arriving SIP message and inserts a notation of the terminal type information of the IAM signal acquired using the second storage unit into the location of the IAM signal acquired using the first storage unit on the basis of the determined routing label. |
