Method and system for billing an ISDN data user interconnection to the public switched telephone network

A system for connecting and billing a first user on a packet network being capable of transmitting packet communications, the first user having a billing identification corresponding to a billing account, to a second user on a voice-band network, the voice-band network being capable of allocating the costs of a voice-band call, the system comprising:

• decoding means connected to the packet network for receiving data packets associated with the first user's packet communications and for decoding said data packets to determine the first user's billing identification;
• first transmitting means responsive to the decoding means for establishing a voice-band call to the second user over the voice-band network;
• and
• second transmitting means responsive to said decoding means and said establishing means for transmitting the billing identification to the voice-band network for use by the voice-band network to allocate the cost of said voice band call to the first user's billing account.

A method for providing data communication between a first user on an integrated digital services network, the first user having a billing identification corresponding to a billing account, and a second user on a voice-band network, the voice-band network being capable of allocating the costs of a voice-band call, the method comprising the steps of:

• receiving a call establishment message containing data information from the first user;
• decoding the call establishment message to determine the first user's billing identification;
• establishing a voice-band call to the second user over the voice-band network for transmission of data information from the first user in a modulated format;
• and
• billing first user's billing account for the call established over the voice band network according to said first user's billing identification.

A system for providing data communication between a first user on an integrated digital services network, the first user having a billing identification corresponding to a billing account, and a second user on a voice-band network, the voice-band network being capable of allocating the costs of a voice-band call, the system comprising:

• receiving means for receiving a message containing the first user's billing information;
• decoding means responsive to the receiving means for decoding said message to determine the first user's billing identification;
• first transmitting means responsive to the decoding means for establishing a voice-band call to the second user over the voice-band network for transmission of data in a modulated format;
• second transmitting means for adapting and then transmitting over said voice-band network in a modulated format the first user's data received by said receiving means;
• and
• billing means responsive to the first transmitting means and the decoding means using the extracted billing identification such that the cost of said voice band call is allocated to the first user's billing account.