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.
As telecommunications networks become more important to a modern society and as technology evolves to permit networks to do more, there is increasing interest in how they should be controlled.
The Common Command Language for Online Interactive Information Retrieval will soon be circulated for ballot to voting members of the National Information Standards Organization Z39, known as NISO.
Standards are often greeted with yawns, ah-humms, and sighs, except when the standard happens to have a major effect on one's business.
