Multi-Tech Systems MTA128ST-USB - Manual (Page 32)

32
MultiModemISDN User Guide
MTA128ST-USB
Command: !D3=n
Function:
SAPI-0 Data TEI
Values: n = 0–63, 240 (auto), 241 (disable)
Default: !D3=240 (Auto TEI)
Description: Use !D3= to set the terminal endpoint identifier (TEI) for the data channel. A
TEI is a number used by the central office switch to identify uniquely each
device connected to the network. When it uses dynamic TEI assignments
(auto TEI), the central office switch assigns a TEI each time the TA connects
to the network. However, the ISDN service provider may assign a fixed TEI
at subscription time, in which case you must configure the TA with the fixed
TEI number. You also can use !D3= to disable the data channel, which may
be useful when multiple TAs are attached to a network terminator bus.
!D3=0–63
Sets TEI to a fixed value from 0–63
!D3=240 Sets data channel for dynamic TEI negotiation
!D3=241 Disables TEI
Command: *!D3=n
Function:
SAPI-0 Voice TEI
Values: n = 0–63, 240 (auto), 241 (disable)
Default: *!D3=240 (Auto TEI)
Description: Use *!D3= to set the TA’s terminal endpoint identifier (TEI) for the voice
channel. See the !D3= command description.
*!D3=0–63
Sets TEI to a fixed value from 0–63
*!D3=240 Sets voice channel for dynamic TEI negotiation (default)
*!D3=241 Disables TEI
Command: !L
Function:
Display Network Configuration
Values: n/a
Default: n/a
Description: Use !L to display the TA’s current DN, SPID, TEI, Data protocol, switch type.
!L Displays current network configuration
Command: >Dn
Function:
Embedded Protocol Analyzer
Values: 0, 1, 2, 3, 4, 5, 6, 98, or 99
Default: n/a
Description: The embedded protocol analyzer records and analyzes various protocols on
B-channel, D-channel and DTE-DCE interface. The embedded protocol
analyzer is useful as a diagnostic tool in that essential data messages
display, which offers the ability to observe interactive operations of the TA,
Central Exchange, and remote communications equipment.
>D0
Display B-channel traffic, decoded as V.120
>D1 Display D-channel traffic, decoding layers 2 and 3 (Q.921 and
Q.931)
>D2 Display D-channel traffic, decoding layer 2 only (Q.921)
>D3 Display D-channel traffic, decoding layer 3 only (Q.931)
>D4 Display B-channel traffic, decoded as X.75
>D5 Display RS-232 traffic, decoded as PPP
>D6 Display B-channel traffic, decoded as PPP
>D98 Disable embedded protocol analyzer, buffered data unchanged
>D99 Enable embedded protocol analyzer, clearing buffered data