# Set DTMF-to-PBX Protocols

This procedure describes how to set these parameters for DTMF-to-PBX message waiting indicators:

- Dial strings (feature access codes) that the server must send to the PBX before or after the mailbox number in order to set message waiting indicators

- Places in the dial string at which the server must wait for dial tone from the switch while setting message waiting indicators

- Whether the server should send a message wait "on" request to the switch for every new message, or only when a mailbox with no new messages receives a message

To set DTMF-to-PBX protocols:

1. From the Main Menu, select (S) System Maintenance, (R) Reconfiguration, (R) Reconfigure System, and then (G) Offline Menu.

| CAUTION! You should make all offline configuration entries on a duplicate of the active configuration so that you can easily check them, and easily correct them if necessary, before activating the configuration.

2. Select (B) Duplicate Active Configuration. The server copies the current (active) configuration.

Note: All subsequent steps in this procedure – along with any other configuration entries – affect only the duplicate (inactive) configuration, and will take effect only after you activate the inactive configuration.

3. Select (T) DTMF to PBX Message Lights.

4. Select (G) Group Selected and enter the number of the line group (1-24) or press Enter if the current number is correct.

5. Select (D) DTMF to PBX Message Lights.

### Set Pre- and Post-DN Dial Strings

1. If the PBX requires a special access code to be dialed first, select (A) PBX Special Access Code and enter the required dial string (0-24 characters) or type a period (.) to delete an existing dial string. Consult the PBX operating manual or the PBX vendor for the correct code or use the table below to configure a string.

2. Note: If you are planning to enable a "wait for an initial dial tone", do not enter a T (wait for dial tone) as the first part of the special access code.

2. If the PBX requires a dial string BEFORE the directory number to turn the message waiting indicator ON, select (D) Pre-DN ON Dial String and enter the required dial string (0-24 characters), or enter a period (.) to delete an existing dial string.

3. If the PBX requires a dial string BEFORE the directory number to turn the message waiting indicator OFF, select (F) Pre-DN OFF Dial String and enter the required dial string (0-24 characters), or enter a period (.) to delete an existing dial string.

4. If the PBX requires a dial string AFTER the directory number to turn the message waiting indicator ON, select (P) Post-DN ON Dial String and enter the required dial string (0-24 characters), or enter a period (.) to delete an existing dial string.

5. If the PBX requires a dial string AFTER the directory number to turn the message waiting indicator OFF, select (Q) Post-DN OFF Dial String and enter the required dial string (0-24 characters), or enter a period (.) to delete an existing dial string.

### Set Dial Tone Call Progress Verification

1. To enable/disable a "wait for initial dial tone", select (I) Initial Dialtone Detect. Select Y if integrating with PBX equipment that produces an initial dial tone, or N if integrating with cellular or other non-PBX equipment that cannot produce a dial tone.

2. To enable/disable dial tone confirmation, select (C) Dial Tone Confirmation. Select Y if a PBX special access code is required and the PBX expects the server to wait for a dial tone before outdialing any other digits, or N in all other cases.

3. To enable/disable a "wait for a dial tone after a message indicators" request, select (W) Wait for Dial Tone and then select Y if the PBX returns a dial tone to indicate that a message indicator request was successful, or N in all other cases.

### Set Successive Indicator "On" Requests

1. To enable/disable successive indicator-on requests, select (S) Suppress Updates to MWL and then select Y to to suppress updates of Message Waiting Lights after users access their mailbox without a change in status, or N to enable successive indicator-on requests.

2. Save the changes to the inactive configuration by exiting to the NuPoint Voice Configuration Main Menu.

Dial String Characters
Character | Explanation
0-9, *, # | Keys on a standard push button telephone
A-D | Fourth column DTMF keys
( ) | Dial Pulse (10PPS) the characters between the parentheses
+ | Pause for one second
T | Go off-hook, wait for dial tone
P | Go off-hook, do not wait for dial tone
E | Go off-hook, wait for dial tone or other steady tone then do next item in string
G | Greet - Wait for a voice or computer tone answer
H | Hang up (go on-hook)
F | Switch hook flash and wait for dial tone
S | Switch hook flash, no wait required
N | Start a new activity; do not go off-hook
L | Wait for an answer supervision signal that indicates the receiving phone has gone off-hook, then dial remaining characters after receiving the signal. Valid only with four-wire connections, not with loop start or ground start phone lines.