
Chapter 4 - AT Commands, S-Registers, and Result Codes
Command: !D3=n
Function:
Values: | n = |
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. | |
|
| Sets TEI to a fixed value from |
| !D3=240 | Sets data channel for dynamic TEI negotiation |
| !D3=241 | Disables TEI |
Command: *!D3=n |
| |
Function: | ||
Values: | n = | |
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. | |
| Sets TEI to a fixed value from | |
| *!D3=240 | Sets voice channel for dynamic TEI negotiation (default) |
| *!D3=241 | Disables TEI |
Command: !DN=n |
| |
Function: | Disable Data DN/MSN | |
Values: | n = 1 or 2 |
|
Default: | All ports are enabled. |
Description:!DNn disables a Data DN/MSN which disables the associated TA port from
| receiving any data calls. However, the port will still be able to originate data | |
| calls. This is useful for applications where a specific port is for | |
| Since the TA has only one serial port, both Data DN/MSN 1 and 2 would | |
| have to be disabled to not accept a call. Disabling only one of the Data DN/ | |
| MSNs will cause the TA to not accept bonded calls | |
| !DN=1 | Disables Data DN/MSN 1 |
| !DN=2 | Disables Data DN/MSN 2 |
Command: *!DN=n |
| |
Function: | Disable Voice DN/MSN | |
Values: | n = 1 |
|
Default: | All ports are enabled. |
Description:*!DNn disables a Voice DN/MSN which disables the associated TA port from receiving any voice calls. However, the port will still be able to originate voice calls. This is useful for applications where a specific port is for
*!DN=1 | Disables Voice DN/MSN 1 |
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