Avaya R2MFC Průvodce konfigurací stáhnout pdf (Strana 56)

56 Chapter 5 R2MFC MBM maintenance

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During call setup, the following information is passed between the BCM and the CO:

1 Dialed digits — Dialed digits are passed without any change. Up to 24 digits can be dialed.

The MFC trunk is capable of repeating dialed digits on outgoing calls to the CO, when

requested according to protocol.

Digits are passed immediately to BCM as they are received (PRI overlap mode) on incoming

calls from CO to BCM. This causes the BCM to determine end of dialing, and to immediately

signal call completion.

2 Calling number — (in PRI: CLID; in MFC: ANI) This number is passed without any change,

and can be up to 16 digits long.

3 Termination status — Termination status is translated as presented in the Table 7. The table

shows both directions. When translating a signal, only the bold value is used.

Other protocol-specific fields are not translated from side to side. They are handled as described

Table 7 in the protocols implementation.

Clock synchronization

By default, the R2MFC MBM synchronizes on the external E1 line, and transmits this clock on the

internal link to the BCM. By doing so, the BCM can synchronize on the external link.

Slips may occur between the BCM and the R2MFC MBM, if the BCM needs to synchronize on

another digital trunk MBM. To avoid slips, there is an option for the R2MFC MBM to synchronize

on the internal link to the BCM, instead of the external E1 line. Synchronization settings can be set

up by using the CLI. See Chapter 6, “Command Line Interface (CLI),” on page 67 for commands

available through the CLI.

Table 7 Translation of Subscriber Status

Subscriber State PRI Signal MFC Signal

1 MFC signal is indicated by meaning. Actual signal depends on country; ITU/T standard is indicated in parentheses.

Free (ringing) ALERTING BW_FreeCharge (B6)

BW_FreeNoChrg (B7)

Busy Cause 17 BW_Busy (B3)

Unallocated number Cause 1 BW_Unlocated (B5)

Network congestion

or general failure

Cause 42

All other values

BW_B_Congest (B4)

Unknown signal

Line out of order Cause 27 BW_OutOfOrder (B8)

Number changed Cause 22 BW_ChangOrder (B2)

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 105 106

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