Analysis of Interoffice Signal Processing

Masaichi KAJIWARA

Analysis of Interoffice Signal Processing

Masaichi KAJIWARA

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Requirements for a telecommunications network are becoming diversified in accordance with progress in social activities. To meet flexibly variable requirements, the telecommunications network should be provided with high capability exchange systems. For such a purpose, the stored program controlled (SPC) switching system may play a key role. In order to process calls in the telecommunications network environment, a signaling system is inevitable. In the telecommunications network, composed of electronic switching systems, the interoffice signaling system should be efficient when handled by a stored program. This paper describes modeling of interoffice signal processing and formulates parameters evaluating signal processing effectiveness. As a numerical example, multifrequency (MF) and common channel (CC) signal processings for a 9 digit transit call in a toll originating switching system served by D-10, N.T.T.'s commercial switching system, are analyzed in an assumed environment of the present analog and the future digital telecommunications network. From the result of this analysis, the paper concludes that a common channel signaling system is effective in the present analog network from the SPC viewpoint. If a digital environment is assumed in the future, a multifrequency-like individual channel signaling system is considered to be effective due to the improvements in dialed number transfer, inherent easy channel state recognition and no necessity for a continuity test. It is also suggested based on the interoffice signal processing analysis to use a common channel signaling system as an interoffice data link between switching offices and a data base, where data on routing (selected speechpath link) or subscriber are stored.

Publication: IEICE TRANSACTIONS on transactions Vol.E64-E No.1 pp.1-6

Publication Date: 1981/01/25

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Type of Manuscript: PAPER

Category: Switching Systems

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Masaichi KAJIWARA

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Masaichi KAJIWARA, "Analysis of Interoffice Signal Processing" in IEICE TRANSACTIONS on transactions, vol. E64-E, no. 1, pp. 1-6, January 1981, doi: .
Abstract: Requirements for a telecommunications network are becoming diversified in accordance with progress in social activities. To meet flexibly variable requirements, the telecommunications network should be provided with high capability exchange systems. For such a purpose, the stored program controlled (SPC) switching system may play a key role. In order to process calls in the telecommunications network environment, a signaling system is inevitable. In the telecommunications network, composed of electronic switching systems, the interoffice signaling system should be efficient when handled by a stored program. This paper describes modeling of interoffice signal processing and formulates parameters evaluating signal processing effectiveness. As a numerical example, multifrequency (MF) and common channel (CC) signal processings for a 9 digit transit call in a toll originating switching system served by D-10, N.T.T.'s commercial switching system, are analyzed in an assumed environment of the present analog and the future digital telecommunications network. From the result of this analysis, the paper concludes that a common channel signaling system is effective in the present analog network from the SPC viewpoint. If a digital environment is assumed in the future, a multifrequency-like individual channel signaling system is considered to be effective due to the improvements in dialed number transfer, inherent easy channel state recognition and no necessity for a continuity test. It is also suggested based on the interoffice signal processing analysis to use a common channel signaling system as an interoffice data link between switching offices and a data base, where data on routing (selected speechpath link) or subscriber are stored.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e64-e_1_1/_p

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@ARTICLE{e64-e_1_1,
author={Masaichi KAJIWARA, },
journal={IEICE TRANSACTIONS on transactions},
title={Analysis of Interoffice Signal Processing},
year={1981},
volume={E64-E},
number={1},
pages={1-6},
abstract={Requirements for a telecommunications network are becoming diversified in accordance with progress in social activities. To meet flexibly variable requirements, the telecommunications network should be provided with high capability exchange systems. For such a purpose, the stored program controlled (SPC) switching system may play a key role. In order to process calls in the telecommunications network environment, a signaling system is inevitable. In the telecommunications network, composed of electronic switching systems, the interoffice signaling system should be efficient when handled by a stored program. This paper describes modeling of interoffice signal processing and formulates parameters evaluating signal processing effectiveness. As a numerical example, multifrequency (MF) and common channel (CC) signal processings for a 9 digit transit call in a toll originating switching system served by D-10, N.T.T.'s commercial switching system, are analyzed in an assumed environment of the present analog and the future digital telecommunications network. From the result of this analysis, the paper concludes that a common channel signaling system is effective in the present analog network from the SPC viewpoint. If a digital environment is assumed in the future, a multifrequency-like individual channel signaling system is considered to be effective due to the improvements in dialed number transfer, inherent easy channel state recognition and no necessity for a continuity test. It is also suggested based on the interoffice signal processing analysis to use a common channel signaling system as an interoffice data link between switching offices and a data base, where data on routing (selected speechpath link) or subscriber are stored.},
keywords={},
doi={},
ISSN={},
month={January},}

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TY - JOUR
TI - Analysis of Interoffice Signal Processing
T2 - IEICE TRANSACTIONS on transactions
SP - 1
EP - 6
AU - Masaichi KAJIWARA
PY - 1981
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E64-E
IS - 1
JA - IEICE TRANSACTIONS on transactions
Y1 - January 1981
AB - Requirements for a telecommunications network are becoming diversified in accordance with progress in social activities. To meet flexibly variable requirements, the telecommunications network should be provided with high capability exchange systems. For such a purpose, the stored program controlled (SPC) switching system may play a key role. In order to process calls in the telecommunications network environment, a signaling system is inevitable. In the telecommunications network, composed of electronic switching systems, the interoffice signaling system should be efficient when handled by a stored program. This paper describes modeling of interoffice signal processing and formulates parameters evaluating signal processing effectiveness. As a numerical example, multifrequency (MF) and common channel (CC) signal processings for a 9 digit transit call in a toll originating switching system served by D-10, N.T.T.'s commercial switching system, are analyzed in an assumed environment of the present analog and the future digital telecommunications network. From the result of this analysis, the paper concludes that a common channel signaling system is effective in the present analog network from the SPC viewpoint. If a digital environment is assumed in the future, a multifrequency-like individual channel signaling system is considered to be effective due to the improvements in dialed number transfer, inherent easy channel state recognition and no necessity for a continuity test. It is also suggested based on the interoffice signal processing analysis to use a common channel signaling system as an interoffice data link between switching offices and a data base, where data on routing (selected speechpath link) or subscriber are stored.
ER -