![Nortel Meridian 1 Option 11C Скачать руководство пользователя страница 142](http://html1.mh-extra.com/html/nortel/meridian-1-option-11c/meridian-1-option-11c_administration-and-maintenance_1706406142.webp)
Page 128 of 492
Chapter 2 — Feature descriptions
553-3011-311
Standard 7.0
May 1999
Multifrequency Compelled Signaling features
R2 and MFC signaling on DID and TIE trunks
This feature allows line and register signaling on DID and TIE trunks, using
an MF sender and receiver card. Each forward signal sent to the Central
Office is acknowledged by a backward signal. This feature also allows the
Meridian 1 to request Calling Number Identification (CNI) information, to be
shown on the originating terminal’s display.
The register signaling part of this feature is supported for ISDN BRI. The
CNI display is not supported.
Multifrequency Signaling for Socotel (MFE)
Multifrequency Signaling for Socotel (MFE) is similar to R2 Multifrequency
Compelled (MFC) Signaling, but is not compelled in the same way. Instead
of each signal being answered by another signal of some meaning, each signal
is answered by a control frequency which indicates to the other end of the call
that the signal has been received and its transmission can cease. In this way,
signals may originate at either end of the call.
R2 MFC Signaling operates by answering each forward signal from the
originating end, with a backward signal from the terminating end. Each
signal must be interpreted using the appropriate table. Unlike R2 MFC
Signaling, backward and forward signals use the same frequency
combinations. The need for the concept of an incoming or outgoing
sender/receiver is replaced by an MFE sender/receiver, which can act in both
directions during any single call.
Pulsed signals, which are used in R2 MFC Signaling to indicate a message
being initiated from the CO which normally replies, are no longer necessary
with the new MFE card.
The sequence of messages sent to and received from the CO is transparent to
the ISDN BRI terminal.
Содержание Meridian 1 Option 11C
Страница 2: ......
Страница 4: ...553 3011 311 Standard 7 0 May 1999...
Страница 12: ...viii Contents 553 3011 311 Standard 7 0 May 1999...
Страница 14: ...Page x About this guide 553 3011 311 Standard 7 0 May 1999...
Страница 152: ...Page 138 of 492 Chapter 3 Feature packaging and prerequisites 553 3011 311 Standard 7 0 May 1999...
Страница 166: ...Page 152 of 492 Chapter 4 Network clocking 553 3011 311 Standard 7 0 May 1999...
Страница 318: ...Page 304 of 492 Chapter 6 ISDN BRI trunk implementation 553 3011 311 Standard 7 0 May 1999...
Страница 434: ...Page 420 of 492 Chapter 8 Service changes and maintenance 553 3011 311 Standard 7 0 May 1999...
Страница 446: ...Page 432 of 492 Chapter 9 ISDN BRI traffic reports 553 3011 311 Standard 7 0 May 1999...
Страница 492: ...Page 478 of 492 Appendix A 2Mb PRI implementation 553 3011 311 Standard 7 0 May 1999...