Patent ID: 8548136

Claim:
A communication apparatus configured to perform IP communication using one of a plurality of guaranteed bands, comprising: a first determining unit configured to determine whether specific identification information designated as a transmission destination of object data, which is a transmission object, by a user is identification information assigned to an internal device existing in a LAN including the communication apparatus; a deciding unit configured to decide a specific guaranteed band to be used for transmission of the object data, from the plurality of guaranteed bands, based on the determination result of the first determining unit; and a first communication unit configured to transmit the object data by performing the IP communication using the specific identification information and the specific guaranteed band, wherein the deciding unit is configured to: in a case where the specific identification information is determined to be the identification information assigned to the internal device, decide the specific guaranteed band using a first deciding method; and in a case where the specific identification information is determined to be not the identification information assigned to the internal device, decide the specific guaranteed band using a second deciding method that is different from the first deciding method.