4.4. NEC Electra Professional Level II KTS

• 4.4.1. NEC Electra Professional Level II Programming Requirements
• Telephone Type Assignment
• Station Number Assignment
• Intercom Ring Pattern
• Voice Mail/Auto Attendant Application Considerations
• 4.4.2. Using the D/42-NE2 Board with the NEC KTS
• 4.4.3. Flexible Line Keys (16)
• Reading LED Indicators on the Flexible Line Keys
• Example
• Pressing Flexible Line Keys
• 4.4.4. Feature Keys (5)
• Reading LED Indicators on the Feature Keys
• Example
• Pressing Feature Keys
• 4.4.5. MIC/ICM LED Indicators
• Reading MIC/ICM LED Indicators
• Example
• 4.4.6. Alphanumeric Display
• Example
• Called/calling Number ID (within the KTS)
• Example
• 4.4.7. Setting the Message Waiting Indicator
• Example
• 4.4.8. Transferring a Call
• Example

The Electra Professional Level II is comprised of a Key System Unit and plug-in modules. It is a fully digital Key Telephone System (KTS) that can support up to 56 CO/PBX lines. The KTS use digital signaling to control its station sets and digitized voice. The KTS has five interface slots, each of which can support up to eight ports (total of 40 ports). The Expansion KSU has three interface slots to allow you to add 16 ports (total of 56 ports).

The D/42-NE2 board has four channels that are connected to ports on the KTS. The Electra Professional Level II KTS switch has many standard features that are supported by the D/42-NE2, such as:

• direct inward dialing (DID)
• hands free operation
• speed dialing
• hunt groups
• message waiting indication
• user programmable feature keys
• called/calling number identification
• call forwarding.

NOTE:

D/42-NE2 refers to both the ISA and PCI board except in reference to specific board installation.

4.4.1. NEC Electra Professional Level II Programming Requirements

There are specific switch programming requirements for using a D/42-NE2 with a NEC Electra Professional Level II KTS. You must ensure that these features are set exactly (and assigned to the right keys) so that the D/42-NE2 and the Unified API function correctly.

Ports (or connectors) on the KTS are numbered starting at 01. Ports 01 and 02 are used to program the KTS and cannot be connected to a D/42-NE2. When programming, port numbers are used, not station numbers (3-digit extension numbers). The following procedure assumes that you are using a Dterm Series III phone set connected to port 1 or 2.

NOTE:

The D/42-NE2 must be connected to ports configured for digital voice mail. Since ports 1 and 2 must be used to program extensions on the KTS, and cannot be configured as digital voice mail ports, the D/42-NE2 cannot be used to program the KSU.

Enter the Programming mode by pressing FNC, HOLD, #, 0, *.

Telephone Type Assignment

All D/42-NE2 channels connected to the KTS must be set to Digital Voice Mail. To set the Telephone:

1. Enter Programming Mode.
2. Press Line Key (LK) 7, then LK 2 to enter KTU mode (the TEL selection starts at station 01).
3. Enter the port number connected to the first channel on the D/42-NE2.
4. Press LK 6 to select Digital Voice Mail.

   NOTE:

   If Digital Voice Mail is not an available option, the KTS software must be upgraded to at least revision 5.0.

1. Press TRF to save the selection and advance to the next port number.
2. Repeat steps 4 and 5 until all ports connected to the D/42-NE2 are configured as Digital Voice Mail.
3. Press SPKR to exit the programming mode.

   NOTE:

   If you power up the KTS with its default configuration, the KTS can automatically configure the ports connected to D/42-NE2 as Digital Voice Mail only if the D/42-NE2 is running and firmware is successfully downloaded. (Note to MS-DOS users - the D/42 driver does not have to be started.)

If the D/42-NE2 does not function after this procedure, ensure that the KTS software is at least revision 5.0.




Station Number Assignment

In order for a KTS port to function properly, it must be assigned a station number.

NOTE:

When the KTS is powered up the first time, ports with phone sets connected to them will have station numbers automatically assigned.

To assign a Station Number:

1. Enter Programming Mode.
2. Press LK 4, then enter 10 on the keypad (the STA selection starts at port 01).
3. Press CNF to advance to the first port connected to a D/42-NE2 channel.
4. Enter the Station Number you wish to assign to this port.
5. Press TRF to save the selection and advance to the next port number.
6. Repeat steps 4 and 5 until all ports connected to the D/42-NE2 are assigned a Station Number.
7. Press SPKR to exit the programming mode.

Intercom Ring Pattern

The Intercom Ring Pattern must be set to Pattern B (default) and the Intercom Tone set to Tone A (default) for Call Progress Analysis to perform accurately. To set the intercom Ring Pattern:

1. Enter Programming Mode and press LK 1, LK 2, then enter 19 on the keypad.
2. Ensure that Pattern B is selected.
3. Press TRF to save the selection and advance to 20-Intercom Ring Tone.
4. Ensure that Tone A is selected.
5. Press TRF to save the selection.
6. Press SPKR to exit the programming mode.

Voice Mail/Auto Attendant Application Considerations

When using the D/42-NE2 in a Voice Mail/Auto Attendant environment, the following items must be considered:

• hunt groups
• call forwarding
• trunk lines must be able to ring the extensions
• determine if an incoming call goes to Voice Mail or receives a greeting.

Setting Up a Hunt Group

A hunt group is used to enable the D/42-NE2 to answer multiple incoming calls. The hunt group contains all the station numbers connected to the D/42-NE2 and is configured in a circular fashion so that when one station is busy, the next available station will receive the incoming call. To create a hunt group do the following:

0. Determine the port numbers/station numbers connected to the D/42-NE2 (for example: port 3=101, port4=102, port5=103, and port6=104).
0. Ensure that each station is programmed as Digital Voice Mail (see procedure above).
0. Set each station number to Master Hunt as follows:
0. Enter Programming Mode and press LK 4, then enter 14 on the keypad (the MSTER selection starts at port 01).
0. Press CNF to advance to the first port connected to a D/42-NE2 channel (port03).
0. Press LK 2 to set Master to Yes.
0. Press TRF to save the selection and advance to the next function (15).
0. Press * and then 4 to return to function 14.
0. Press CNF to advance to the next port connected to a D/42-NE2 channel (port04).
0. Repeat this procedure (steps b through e) until all ports connected to the D/42-NE2 are assigned as Master. Press SPKR to exit the programming mode.
0. Set the hunt to progress through the stations numbers in chronological order (i.e., 101 to 102, 102 to 103, 103 to 104, 104 to 101).

   NOTE:

   For each port connected to the D/42-NE2, you will enter the station number to hunt next. For example, port 3 goes to station 102, port 4 goes to 103, port 5 goes to 104, port 6 goes to 101.

0. Enter Programming Mode and press LK 4, then enter 15 on the keypad (the CMFWD selection starts at port 01.
0. Press CNF to advance to the first port connected to a D/42-NE2 channel (port03).
0. Enter the station number you want port 03 to hunt (e.g., station 102).
0. Press TRF to save the selection and advance to the next function (17).
0. Press * twice and then 5 to return to function 15.
0. Press CNF to advance to the next port connected to a D/42-NE2 channel (port 04).
0. Repeat this procedure (steps b through e) until all ports in the hunt group are configured. Press SPKR to exit the programming mode.
0. Set the Trunk Lines to ring the pilot station (station 101). You may set trunk termination to day/night/both. The selection depends on your application requirements.
0. Set Day Mode (DIT Assignment)
1. Enter Programming Mode and press LK 3, then enter 42 on the keypad (the DIT D selection starts at trunk 01).
2. If necessary, press CNF to advance to the first trunk connected to a D/42-NE2 channel.
3. Enter the number of the pilot station of the hunt group (e.g., 101). If you do not want the hunt group activated in Day Mode, leave the field blank.
4. Press TRF to save the selection and advance to function 15-ANA Assignment.
5. If you do not want to set Night Mode, press SPKR to exit the programming mode.
0. Set Night Mode (ANA Assignment)
1. Enter the number of the pilot station of the hunt group (e.g., 101). If you do not want the hunt group activated in Night Mode, leave the field blank.
2. Press TRF to save the selection.
3. Press SPKR to exit the programming mode.

Call Transfer

To transfer a call using the dial( ) function, the Transfer Key (TRF) must be enabled on the port connected to the D/42-NE2.

Incoming calls to the hunt group can be forwarded by either blind transfers or supervised transfers. If you intend to use blind transfers in a Voice Mail/Auto Attendant environment, the stations receiving the transfers must be programmed to forward calls to the pilot station in the hunt group on Ring/No Answer and Busy. If the stations are not configured this way, any calls transferred back to the KTS because of Ring/No Answer or Busy will not be able to be placed in a mailbox. The Voice Mail/Auto Attendant application can use called/calling number ID to determine how to answer calls transferred back to the KTS.

If you intend to use supervised transfers in a Voice Mail/Auto Attendant environment, the stations receiving the transfers must be programmed not to forward calls to the pilot station in the hunt group on Ring/No Answer and Busy. The Voice Mail/Auto Attendant application can use call progress analysis to determine how to answer calls that could not be forwarded.

4.4.2. Using the D/42-NE2 Board with the NEC KTS

The D/42-NE2 uses different firmware depending on which switch it is connected to (Electra Professional Level II KTS or the NEAX 2400 ICS and NEAX 2000 IVS PBXs). During software installation, you will be asked to choose the type of NEC switch connected to your D/42-NE2 board (KTS or PBX). The installation program will install the appropriate files. Refer to the documentation that contains the software installation procedures for more information.

The D/42-NE2 board performs functions available to a Dterm Series III telephone set (see Figure 16). A Dterm Series III telephone set uses LED indicators to show line key status (on the line keys), function key status (on the function keys), and an LCD display to show user prompts and messages (above the line keys). The D/42-NE2 can:

• transfer calls
• set the message waiting indicator
• read the LCD display
• read LED indicators
• read the called/calling number ID
• press buttons.

Figure 16. NEC Dterm Series III Telephone (KTS)

4.4.3. Flexible Line Keys (16)

There are 16 Flexible Line keys located on the top of the Dterm Series III telephone - see Figure 16. These keys are configured by the system programmer to perform many different functions. When programming the telephone, the Flexible Line keys are used to select the programming mode or sub-mode. There is a two-color LED Indicator associated with each Flexible Line key. The LEDs can take on one of the states listed in Table 16.

Table 16. LED Indicator Status Data for the Dterm Series III (KTS)

Reading LED Indicators on the Flexible Line Keys

The D/42-NE2 can determine the state of its LED Indicators on the Flexible Line keys by using the d42_indicators( ) function to retrieve the LED Indicators data. This function places the LED Indicators data (26 bytes) in an application buffer. Bytes 0-15 contain the indicator status for Flexible Line Keys 01-16, respectively - see Table 17.

NOTE:

The total length of the LED Indicators data is 26 bytes and represents the 24 LED Indicators on a Dterm Series III telephone. Two bytes (16 and 20) are not used.

Table 17. Flexible Line Key Indicators for the Dterm Series III (KTS)

Example

An application uses the d42_indicators( ) function to retrieve the current data for the LED Indicators for a given channel on a D/42-NE2. The data placed in the application buffer is shown below. If the data for byte 1 is 0x0F, the indicator for Flexible Line Key 2 is green and on. Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_indicators( ) function.

NOTE:

You can determine if an indicator is red or green by checking if bit 3 is 0 (red) or 1 (green). The example below shows the binary data for On and Wink.

           Bit    7 6 5 4 3 2 1 0  
On (0x07 red)     0 0 0 0 0 1 1 1  
On (0x0F green)   0 0 0 0 1 1 1 1  
Wink (0x02 red)   0 0 0 0 0 0 1 0  
Wink (0x0A green) 0 0 0 0 1 0 1 0




Pressing Flexible Line Keys

The D/42-NE2 can "press" any of its Flexible Line Keys using the dial( ) function. Refer to the D/42 Series Software Reference for your particular operating system for more information about dialing programmable keys. Each Flexible Line Key on the Dterm Series III telephone is assigned a dial string sequence (refer to Table 17). By using the dial( ) function and the appropriate dial string, the D/42-NE2 can press any Flexible Line Key.

4.4.4. Feature Keys (5)

There are five Feature Keys located next to the dial pad keys (FNC, CNF, LNR/SPD, SPKR, and ANS). There is a two-color LED Indicator associated with each Feature Key. The LED Indicators can take on any one of the states listed in Table 16.

Reading LED Indicators on the Feature Keys

The D/42-NE2 can determine the state of its LED Indicators on the Feature Keys by using the d42_indicators( ) function to retrieve the LED Indicators data. This function places the LED Indicator data (26 bytes) in an application buffer. Bytes 18-23 (byte 20 is not used) contain the LED Indicator status for the Feature Keys (see Table 18). Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_indicators( ) function.

Table 18. Feature Key Indicators for the Dterm Series III (KTS)

Example

An application uses the d42_indicators( ) function to retrieve the current data for the LED Indicators for a given channel on a D/42-NE2. The data placed in the application buffer is shown below. If the data for byte 23 is 0x07, the indicator for SPKR is red and on. Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_indicators( ) function.

Pressing Feature Keys

The D/42-NE2 can "press" any of its Feature Keys using the dial( ) function. Refer to the D/42 Series Software Reference for your particular operating system for more information about dialing programmable keys. Each Feature Key on the Dterm Series III telephone is assigned a dial string sequence (refer to Table 18). By using the dial( ) function and the appropriate dial string, the D/42-NE2 can press any Feature Key.

4.4.5. MIC/ICM LED Indicators

The MIC and ICM indicators are located between the Flexible Line keys and the keypad. In normal operation these indicators show the status of the microphone and the intercom. During programming, these indicators are used as prompts. The MIC and ICM LED Indicators can take on any one of the red states (0x00 - 0x07) listed in Table 16.

Reading MIC/ICM LED Indicators

The D/42-NE2 can determine the state of its MIC and ICM LED indicators by using the d42_indicators( ) function to retrieve the LED Indicators data. This function places the LED Indicator data (26 bytes) in an application buffer. Bytes 24 and 25 contain the indicator status for MIC and ICM indicators. Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_indicators( ) function.

Example

An application uses the d42_indicators( ) function to retrieve the current data for the LED Indicators for a given channel on a D/42-NE2. The data placed in the application buffer is shown below. If the data for byte 24 is 0x07, the indicator for MIC is on. Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_indicators( ) function.

4.4.6. Alphanumeric Display

The alphanumeric display is a two row 32-digit LCD that is used to show the activity of the phone. Some examples are:

• date and time
• feature names
• error messages
• called/calling identification
• phone status
• line selection.

The data used to display information in the LCD alphanumeric display is in ASCII format. When the station set is not in use, the display shows the date and time. The content of the display is changed automatically (e.g., receiving an incoming call, making an outgoing call, or activating a feature).

The D/42-NE2 can retrieve the information on its alphanumeric display by using the d42_display( ) function. The function places the display data (32 bytes) in an application buffer. Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_display( ) function.

Example

An application uses the dial( ) function and the appropriate dial string to press keys to enter the programming mode. The d42_display( ) function is then used to retrieve the display data and verify that the program mode has started. The display data is shown below.

byte

data

byte

data

byte

Called/calling Number ID (within the KTS)

When receiving a call on a D/42-NE2 from another extension, the KTS sends calling number ID data (by default, the extension number of the telephone placing the call) to the station set between the first and second rings. The station set processes the data and sends an ID message to the display. The calling number ID data sent from the KTS to the station set differs from the calling number ID data presented on the display.

When placing a call to another extension, the called number ID (by default, the extension of the telephone being called) is shown in the display.

Both the calling and called number IDs can be retrieved using the d42_gtcallid( ) function. The d42_gtcallid( ) function retrieves the called/calling number ID message sent from the KTS to the station set, not the data sent to the display. Refer to the D/42 Series Software Reference for your particular operating system for more information about using d42_gtcallid( ) function.

The contents of the called/calling number ID is shown in Table 19 (as seen by the receiver of the call).

Table 19. Called/calling Number ID Data for the NEC Electra Professional Level II

Call Route	Called/calling Number ID Data
Call received from trunk line 1	_0-1000
Call received from station set 201	_201
Call originally received on trunk line 1, then transferred to station set 200	200_0-1000
Call originally received by extension 200, the transferred to extension 203	203_200

NOTE:

The called/calling number ID can also be obtained using the d42_display( ) function, however, you should use the d42_gtcallid( ) function so that your application will maintain functionality across different manufacturers' switches.

Example

An application uses the d42_gtcallid( ) function to retrieve the called/calling number ID for a call received on a specified channel on a D/42-NE2. The called/calling number ID data is shown below.

data

byte

text

data

byte

4.4.7. Setting the Message Waiting Indicator

The D/42-NE2 can set the Message Waiting Indicator (on or off) on another extension using the dial( ) function and the appropriate dial string. Refer to the D/42 Series Software Reference for your particular operating system for more information about dialing programmable keys.

NOTE:

The Message Waiting Indicator can also be set using the dial( ) function and appropriate dial string to press the Flexible Line Key assigned to send messages (MSG), however, you should use the dial( ) function as described so that your application will maintain functionality across different manufacturers' switches.

The D/42-NE2 can determine the state of its Message Waiting Indicator using the d42_indicators( ) function to retrieve the LED Indicators data. Byte 17 contains the Message Waiting indicator status (0x00 is off; 0x07 is on). Refer to the D/42 Series Software Reference for your particular operating system for more information about using the d42_indicators( ) function.

Example

An application uses the d42_indicators( ) function to retrieve the LED Indicators data for a specified channel on the D/42-NE2 to determine if a message is waiting. The LED indicators data is shown below. The data 0x00 shows that the MWI indicator is off (there are no messages waiting).

4.4.8. Transferring a Call

The D/42-NE2 can transfer calls using the dial( ) function. By using the dial( ) function and the appropriate dial string (&,<extension>), the D/42-NE2 can transfer a call to any extension connected to the switch. Refer to the D/42 Series Software Reference for your particular operating system for more information about dialing programmable keys.

NOTE:

The transfer function can be performed using the dial( ) function and the appropriate dial string to press the Flexible Line Key assigned to transfer however, you should use the &,<extension> dial string so your application will maintain functionality across different manufacturers' switches.

The D/42-NE2 can perform both supervised and blind transfers (refer to Sections 2.1. Supervised Call Transfer and 2.2. Blind Call Transfer). When a blind transfer is performed, the KTS controls where the call is routed if the called extension is busy or does not answer. When a supervised transfer is performed, your application can implement call progress analysis and called/calling number ID to intelligently control where the call is routed and what type of message is played if the called extension is busy or does not answer. Because of this capability, supervised transfer is the preferred method.

Example

An application answers an incoming call and plays a greeting message prompting the caller to enter the extension they wish to reach (the caller enters 221). Using the dial( ) function with the dial string (&,221), the application attempts to transfer (supervised) the call to extension 221. Call progress analysis is used to determine if extension 221 is answered, busy, or there is no answer. If extension 221 answers, the application hangs up and the transfer is complete. If the extension is busy or not answered, the application reconnects to the incoming call and plays a message asking the caller to choose between accessing voice mail or transferring to the operator.

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