Abstract:
The present invention provides a technique that enables an image communication apparatus capable of performing voice communication and T.30 in-band FAX communication over the IP network to positively detect a CNG signal and achieve switching to FAX reception in the answerphone connection mode and the FAX/TEL-switching mode. The communication apparatus includes a MODEM that controls facsimile communication and a SLIC that controls a telephone. A selector includes switches for connecting the IP network and the MODEM, and switches for connecting the IP network and the SLIC. A CPU controls the switches of the selector such that signals from the IP network are supplied to both of the MODEM and the SLIC.
Abstract:
There are provided a communication apparatus capable of performing voice communication via an IP network, and performing FAX communication using a deemed voice, and a method of controlling the same. At the time of reception of an incoming call, the apparatus determines whether an incoming voice communication call or digital data has been received. If it is determined that the incoming voice communication call has been received and there is an already connected voice communication section, the SLIC superimposes a tone of a notification of the incoming call during voice communication on a voice during voice communication. When the telephone instructs to switch to the incoming call, the apparatus establishes a new session for the incoming call, and controls the selector to connect the already connected voice communication session to the digital modem to send a holding tone.
Abstract:
The present invention provides a technique that enables an image communication apparatus capable of performing voice communication and T.30 in-band FAX communication over the IP network to positively detect a CNG signal and achieve switching to FAX reception in the answerphone connection mode and the FAX/TEL-switching mode. The communication apparatus includes a MODEM that controls facsimile communication and a SLIC that controls a telephone. A selector includes switches for connecting the IP network and the MODEM, and switches for connecting the IP network and the SLIC. A CPU controls the switches of the selector such that signals from the IP network are supplied to both of the MODEM and the SLIC.