US 5,208,806 A · ISDN terminal equipment operating with circuit switching mode and packet switching mode

Abstract

ISDN terminal equipment containing: a circuit switching communication unit, a packet communication unit, a manual starting unit, an unsuccessful try detecting unit, and a retrying unit. The manual starting unit starts an operation of a setting up of a call using a predetermined one of the circuit switching communication unit and the packet communication unit when receiving a manual start input. The unsuccessful try detecting unit detects that data communication has not been successfully begun by the operation of the manual starting unit. The retrying unit starts an operation of a setting up of a call using the other of the circuit switching communication unit and the packet communication unit when the unsuccessful try detecting unit detects that the data communication has not been successfully begun by the operation of the manual starting unit.

Claims10

Dependent claims

Integrated services digital network terminal equipment comprising:

circuit switching communication means for carrying out data communication in accordance with a circuit switching procedure;
packet communication means for carrying out the data communication in accordance with a packet communication procedure;
manual starting means for receiving a manual start input and for setting up a call using a predetermined one of said circuit switching communication means and said packet communication means when receiving the manual start input;
unsuccessful try detecting means for detecting that the data communication has not been successfully begun by said manual starting means;
and
retrying means for setting up the call using said circuit switching communication means when said unsuccessful try detecting means detects that said packet communication means is unsuccessful in setting up the data communication and for setting up the call using said packet communication means when said unsuccessful try detecting means detects that said circuit communication means is unsuccessful in setting up the data communication.

3 more elements

Dependencies are inferred from the claim text.

ISDN terminal equipment operating with circuit switching mode and packet switching mode

Life of this patent

ISDN terminal equipment operating with circuit switching mode and packet switching mode

Life of this patent

Abstract

Claims10