Patent ID: 6011968
Filing Date: 2000-01-04
Classification: H04M,H04N,H04W

Abstract:
A cellular modem pool comprising:a first modem for terminating a cellular-side of a facsimile call where the first modem uses a fax modulation to communicate fax handshaking and fax encoded data with a cellular modem located at a cellular endpoint, the first modem configured to recover facsimile call parameter information from a fax signal transmitted from the cellular modem, the first modem including a data terminal equipment port and further configured to transmit at least one non-modulated signal via the data terminal equipment port in response to the fax signal, the at least one non-modulated signal including the facsimile call parameter information; anda second modem for terminating a public-switched-telephone network side of the facsimile call where the second modem uses a facsimile modulation to communicate fax handshaking and fax encoded data with a far-end modem located at a far-end endpoint, the second modem including a data terminal equipment port coupled to the data terminal equipment port of the first modem, the second modem configured to receive the at least one non-modulated signal and to recover the facsimile call parameter information from the at least one non-modulated signal, the second modem further configured to transmit the facsimile call parameter information to the far-end modem via at least one modulated signal,wherein one of the modems is configured to compare the facsimile call parameter information with data retrieved by the one modem and to modify the facsimile call parameter information in response to a determination that a difference exists between the facsimile call parameter information and the data.