Method for use in completing telephone calls

Details Method for use in completing telephone calls Method for use in completing telephone calls

1993-07-02

1995-12-05

Hofsass, Jeffery A.

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

379201, 379220, 379221, 379216, H04M 700

Patent

active

054736811

ABSTRACT:
The indication may be transmitted as a signaling system 7 (SS7) message, or a portion thereof. The LEC may also provide an indication that the carrier whose access code was entered was not the carrier to which the calling telephone line was PIC'd. Advantageously, using the transmitted indication, an IXC can determine the number of instances in a predetermined time period that calls were placed using its access code, thereby verifying of the effectiveness of its advertisements for use of the access code.

REFERENCES:
patent: 4555594 (1985-11-01), Friedes et al.
patent: 4565903 (1986-01-01), Riley
patent: 4577066 (1986-03-01), Bimonte
An Overview of Signaling System No. 7, by G. Gary Schlanger, IEEE J. on Selected Areas in Comm. vol. SAC-4, No. 3, May 1986.
Common channel signaling based on CCITT System No. 7, by Hlawa et al., Telephony, Feb. 9, 1981.
Demystifying SS7 Architecture, by William Stallings, Telecommunications, Mar. 1989.

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