Patent ID: 9124821
Filing Date: 2015-09-01
Classification: H04N

Abstract:
1. A communication apparatus comprising: a communication control section configured to respond to, based on SIP (Session Initiation Protocol), a request from a source communication apparatus; and an information acquiring communication control section configured to control communication with an external maintenance system, wherein the communication control section is further configured to, when the associated communication apparatus including the communication control section itself receives a connection request as the request from the source communication apparatus but is temporarily unable to execute connection processing required by the connection request, respond to the connection request to send back to the source communication apparatus temporal inexecutability information indicating that the associated communication apparatus is temporarily unable to execute the connection processing required by the connection request and containing a processing executable time when the associated communication apparatus becomes able to execute the connection processing, and the information acquiring communication control section is further configured to, when the associated communication apparatus including the information acquiring communication control section itself causes an error requiring repair, issue to the maintenance system a maintenance call requesting the repair and determine the processing executable time based on an estimated repair period indicated by a maintenance notice which is a response to the maintenance call.