Title :
An implementation of voice message connection control for PSTN subscribers in ATM switching system
Author :
Park, Hyeon ; Hong, Sung-Back ; Lee, Yong-Kyun
Author_Institution :
Electron. & Telecommun. Res. Inst., Taejon, South Korea
Abstract :
The IWF (inter working function) interworking between asynchronous transfer mode (ATM) and existing synchronous transfer mode (STM) network should ensure the continued support of services and applications currently provided. As the ATM switching system accommodates an STM switch, in order to give the same quality of voice services to the telephone users, the interworking system should cover various technical issues such as voice quality, echo control, partially filled cell, ATM adaptation layer (AAL) for voice, tones and announcements. The voice message connection control, which is the subject of this paper, is one of the essential technical issues for voice services. We present the design and implementation of voice message connection control technology which is used to announce the causes of call failure in the ATM switching system accommodating the public switched telephone network (PSTN) and narrowband ISDN (N-ISDN) subscribers
Keywords :
ISDN; asynchronous transfer mode; internetworking; telecommunication congestion control; telephone networks; voice communication; ATM switching system; N-ISDN; PSTN subscribers; STM network; asynchronous transfer mode; call failure; interworking function; interworking system; narrowband ISDN; network design; public switched telephone network; software building blocks; synchronous transfer mode; voice message connection control; voice service quality; Asynchronous transfer mode; B-ISDN; Control systems; IEEE news; ISDN; Narrowband; Switches; Switching systems; Telecommunication control; Telephony;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.652085
