4A Toll Crossbar Application By K. E. CRAWFORD, C. J. FUNK, P. R. MILLER and J. D. SIPES (Manuscript received May 7, 1977) The No.
An Overview By A. E. Ritchie and J. Z. Menard (Manuscript received May 7, 1977) In May of 1976, a new Common Channel Interoffice Signaling (CCIS) system linked together the last new No.
A CCIS switching office or Signal Transfer Point (STP) consists of a variety of complex software and hardware systems whose sound design and thorough testing can be aided by effective support and d
Domestic CCIS will extend eventually to most SPC-type switching offices in the DDD network.
Until now signaling systems have to a large extent been provided on a per trunk in-band basis and generally have provided adequate performance for the present-day operating environment.
Common Channel Interoffice Signaling (CCIS) is being rapidly introduced throughout the toll network of the Bell System. At present, CCIS is part of every No.
No. 4 ESS, a large-capacity toll switching machine, was originally designed to handle two basic address signaling systems, Dial Pulse (DP) and Multifrequency (MF).
Peripheral Maintenance and Administration Support System By R. C.
Signaling Network By P. R. MILLER and R. E.
In the early development stages of this new signaling system the need for an integrated electronic technology approach for new units became apparent.
