Panasonic Kx-tvs50, Kx-tvs80 Voice Processing System Installation Manual

							INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS41
Section 3
INTEGRATING THE VPS WITH
PANASONIC KX-T PHONE SYSTEMS 
						

							3.1 GUIDELINES FOR INTEGRATION
42INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
3.1 GUIDELINES FOR INTEGRATION
3.1.1 APT/DPT or Inband Signaling?
There are 3 types of integration available on the KX-TVS50/80: Inband Signaling, APT and 
DPT. The VPS used with any other brand of telephone equipment require inband equipment. 
KX-TA624 that can use APT Integration is:
• KX-TA624 Version Y581A or higher
KX-TD series PBXs that can use DPT Integration are:
• KX-TD308 Version P871F or higher
• KX-TD816 Version P301O or higher
• KX-TD1232 Version P231U or higher
3.1.2 Why Integration is Important
The KX-TVS50/80 works well with most PBXs because its connections are made through a 
standard single-line (tip/ring) telephone interface. However, the VPS operation depends on the 
capabilities and features provided by the PBX; its performance will vary when connected with 
different PBX systems. For example, Follow-on (or Called Party) ID is a feature of the PBX. 
If the PBX does not have this feature, the VPS cannot transfer calls directly to the correct 
mailbox and play the busy or no-answer greeting for that mailbox. 
3.1.3 How the VPS and the PBX Communicate
To the PBX, the VPS looks like SLT sets. The PBX thinks that the VPS is an SLT, and the VPS 
mimics all actions a live attendant would carry out from an SLT.
For the VPS and the PBX to communicate, proper signaling is important. Like an attendant, 
the VPS places calls by going off-hook and dialing numbers. It starts call transfers with a 
hookswitch flash to put callers on hold and then dials the extension number. By recognizing 
call progress tones from the PBX, the VPS decides how calls should be handled. Inband 
Integration allows the PBX to send certain digits (DTMF) to the VPS, allowing it to recognize 
the status of the extension and take the appropriate action.
Ta b l e  8  
VPS/PBX COMMUNICATION
PBX to VPS
VPS to PBX
Call Progress Tones SLT Signals
• ringback
•busy
• reorder• on/off hook
• hookswitch flash
• DTMF tones 
						

							3.1 GUIDELINES FOR INTEGRATION
INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
43
The VPS must also have access to certain PBX features. For example, if the VPS takes a 
message, one way it can notify the mailbox owner is by dialing the PBXs Message-Waiting-
Lamp-On code. Once new messages are retrieved, the VPS dials the Message-Waiting-Lamp-
Off code for that same mailbox owner.
3.1.4 PBX Requirements for Integration
The PBX must have certain capabilities and features to work with the VPS. (Although this 
section includes tests to help you evaluate the PBX, it may be necessary to refer to the PBXs 
documentation for detailed capability and feature descriptions.)
Single Line (Tip/Ring) Port Circuits
The VPS can only be connected to a PBX that supports SLT sets. Some PBXs need an OPX 
card to provide this connection. However, some OPX cards do not provide all the capabilities 
listed in this section.
Following are the minimum current and voltages that the PBX must supply:
Station to Station DTMF Signaling
For system users to access VPS services and features, they must be able to send DTMF tones 
from their telephones to the VPS port. As a general rule, SLT sets can perform station-to-
station DTMF signaling; however, many proprietary telephones cannot. Some PBXs need to 
be programmed to make proprietary sets use DTMF signaling.
If the PBX does not provide station-to-station DTMF signaling, VPS services and features 
will be limited.DTMF Tones
Ta b l e  9  
Minimum Loop Current 20 mA
Minimum Line Voltage 7 V DC
Minimum Ringing Voltage 40 V AC
TEST:Call an SLT extension from the telephone in question. When the call 
is answered, see if the person receiving the call hears DTMF tones when 
numbers are dialed.Ta b l e  8  
VPS/PBX COMMUNICATION 
						

							3.1 GUIDELINES FOR INTEGRATION
44INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
Message Waiting Notification from an SLT
The PBX extensions should light a lamp or receive stutter dial tone when the Message-Waiting-
Lamp-On code is dialed by the VPS. The VPS functions best when the extension number of 
the voice mailbox owner follows the Light-On or Light-Off code. On some PBXs, however, the 
extension number is dialed first, followed by a hookswitch flash and then the On code. This 
presents a problem if the extension is answered before the VPS sends the hook-switch flash.
If the PBX does not provide message waiting notification from an SLT, the VPS can only 
notify mailbox owners by dialing a beeper number or user-assigned extension.
This process slows down VPS performance as it dials the beeper or extension number and waits 
to confirm notification. The beeper or user-assigned extension notification is meant to be used 
for necessity, usually for mailbox owners who are often out of the office (e.g., salespeople or 
field representatives). The only other option, without message waiting notification, is for 
mailbox owners to periodically call the VPS to check for messages.
Screened Transfer from an SLT
The PBX must provide a screened transfer from an SLT for the VPS to function properly.
A screened transfer:
1.Puts the caller on hold, usually with a hookswitch flash.
2.Dials the extension.
3.Checks to see if the called subscriber is in, out, or on another line, and whether or not that 
subscriber accepts the transfer.
4.Completes the transfer (by going on-hook) or returns to the caller to say that the party is 
busy or not available. It then gives the caller an opportunity to leave a message.
If the PBX does not provide screened transfer from an SLT, the VPS cannot give callers the 
option to leave a message in a subscribers mailbox.
Follow-on ID or Called Party ID
When forwarding or transferring a call to the VPS, a PBX with Follow-on ID sends the mailbox 
number of the called subscriber to the VPS before connecting the caller. The VPS responds by 
playing that subscribers personal greeting. This operation is sometimes called Call Forward to TEST: See if dialing the On code from an SLT can turn on an extensions 
message waiting indicator.
TEST: Place an outside call from an SLT. See if you can set up a screened 
transfer to another extension. Next, try the same test with an internal call. 
(The VPS may have to transfer both types of calls.) 
						

							3.1 GUIDELINES FOR INTEGRATION
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45
Mailbox. Without this feature, the VPS cannot immediately play the greeting when the line is 
busy or there is no answer and allow the caller to leave a message. 
						

							3.2 PBX PARAMETERS AND PORT SETTINGS
46INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
3.2 PBX PARAMETERS AND PORT SETTINGS
3.2.1 General Guidelines and Definitions
Optimal performance of the VPS/PBX system relies on proper VPS programming. There are 
3 categories of hardware settings: RS-232C, Port Settings, and PBX Interface Parameters. 
Entering a number sets some of the parameters, while others use sequence codes.
3.2.2 RS-232C Settings
•Baud Rate (300 - 38400):
 
Specifies the bits-per-second (the speed at which the data is 
transferred).
•Word Bit Length (7 - 8):
 
Defines the number of bits in each byte or character.
•Parity (N, O, E):
 
Specifies the parity used for error detection.
•Stop Bit Length (1 - 2):
 
Specifies the number of bits used to signify the end of the byte.
•Default:
 
9600, 8, N, 1
3.2.3 Port Settings
There is no need to change these in a typical installation.
 Only change these parameters when 
using a CO (central office) line directly to the KX-TVS50/80. Each port on the VPS should be 
matched to the type of signaling the PBX expects. If you need to change these settings, refer 
to the PBX manual or customer support office to get the correct values for these settings.
•Flash Time—100, 300, 600, 900
 ms: 
 
The minimum amount of time that the PBX requires to recognize a hookswitch flash. 
Choose the amount that is equal to or greater than the PBXs setting.
•CPC Signal (Calling Party Control Signal)—NONE, 6.5, 150, 300, 450, 600
 
ms:
The amount of time allowed for the short break in loop current that is used to indicate 
that the caller has hung up; usually set to NONE, since most PBXs do not provide this 
signal to single line ports. If choosing a setting other than NONE, use an amount equal 
to or less than the PBX or telephone company provided CPC signal.
•Disconnect Time—1 - 8
 s:
The amount of time that the line is temporarily unavailable after a call has ended.
•Dial Mode—DTMF, Pulse 10 
pps, Pulse 20 
pps:
The type of signaling the PBX single line port expects to receive. (pps
 = pulses per 
second) 
						

							3.2 PBX PARAMETERS AND PORT SETTINGS
INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
47
3.2.4 PBX Interface Parameters
Dialing Parameters
•PBX Type:
 
 
Specifies the type of PBX which is connected to the VPS.
•Integration Mode:
 
 
Specifies the method of integration to be used between the VPS and PBX. If PBX type is set 
to the Panasonic KX-T series, the Inband Signaling parameters are set automatically and 
should not be altered. APT Integration is only available when a KX-TA624 PBX is 
connected and the software is upgraded. DPT Integration is only available when a KX-TD 
series PBX is connected and the software is upgraded.
•Operator Transfer Sequence:
 
 
Tells the VPS how to transfer a call to the operator.
Example: FTX [hookswitch flash—dial tone—dial (operator) extn.]
•Extension Transfer Sequence:
 
 
Tells the VPS how to transfer a call to an extension.
Example: FTX [hookswitch flash—dial tone—dial extn.]
•Alternate Extension (Transfer Sequence): 
 
 
Tells the VPS how to transfer a call to an extension that is entered into the Alternate 
Extension Group. This is useful for extensions that need a special transfer procedure (i.e., 
blind transfer) such as modem extensions.
Example: FTXD [hookswitch flash—dial tone—dial extn.—hang up]
•Reconnect Sequence on Busy:
 
 
Tells the VPS how to return to the caller if the extension the caller has dialed is busy. PBXs 
differ in how they handle this function. Test from an SLT to determine the sequence.
•Reconnect Sequence on No Answer:
 
 
Tells the VPS how to return to the caller if the extension the caller has dialed does not Table 10 
SEQUENCE CODES
D Disconnect
F Hookswitch Flash
R Ring Detection
S Silence Detection
T Dialtone Detection
W Wait for 1 Second
X Dial Extension
A: Answer
0-9,  , #DTMF Digits 
						

							3.2 PBX PARAMETERS AND PORT SETTINGS
48INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
answer. PBXs differ in how they handle this function. Test from an SLT to determine the 
sequence.
•Reconnect Sequence on Refused Call:
 
 
Tells the VPS how to return to the caller if the extension dialed has Call Screening enabled 
and the subscriber chooses not to take the call. PBXs differ in how they handle this function. 
Test from an SLT to determine the sequence.
•Light On Sequence for Message Waiting Lamp:
 
 
This is the dialing sequence that the VPS must use to turn on a message waiting lamp at an 
extension.
•Light Off Sequence for Message Waiting Lamp:
 
 
This is the dialing sequence that the VPS must use to turn off a message waiting lamp at an 
extension.
•Call Waiting Sequence:
 
 
This sequence is carried out by the VPS to perform call waiting when the extension being 
called is busy. PBXs differ in how they handle this function. Test from an SLT to determine 
the sequence.
•Release Sequence for Call Waiting:
 
 
This sequence is carried out by the VPS to release call waiting. PBXs differ in how they 
handle this function. Test from an SLT to determine the sequence.
Inband Signaling
These parameters are used when the Integration Mode is set to Inband. If the PBX type is set 
to a KX-T series system, these parameters will be automatically set. If another type PBX is 
used, check that systems installation manual for settings. 
Table 11 
Code
(default)Call State Sent to the Voice Mail Port When...
1 Ringback Tone The extension dialed is ringing.
2 Busy Tone The extension dialed is busy.
3Reorder Tone An invalid extension number is dialed or the call is 
inadvertently connected to another Voice Mail port (also 
heard when no DTMF receiver is available to the Voice Mail 
extension).
4 DND The extension dialed has set DND feature (Do Not Disturb).
5 Answer The extension dialed is answered.
6Forwarded to Voice 
Mail (Ringing)The extension dialed is forwarded to Voice Mail and another 
Voice Mail port is able to answer. (This lets the first Voice 
Mail port, usually an Auto Attendant, send the call to the 
other Voice Mail port.) 
						

							3.2 PBX PARAMETERS AND PORT SETTINGS
INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
49
Digit Translation Table Parameters
These parameters allow PBXs that have a fixed Follow-on ID sequence to be used with the KX-
TVS50/80. For example, a Follow-on ID sequence of [  101] can be changed to [#6101] 
by using these parameters. 
•Inter-Digit Time-Out:
 
This parameter defines the interval of incoming signals (Follow-
on ID) from the PBX to the VPS. The Digit Translation Table applies the digits received 
within this time to translation.
•Input-Output (up to 8 alphanumeric characters):
 
When the system receives digits 
within the inter-digit time, it checks them against the input table. If they are found, the 
system utilizes the output digits in their place. 7Forwarded to Voice 
Mail (Busy)The extension dialed is forwarded to Voice Mail and no 
other Voice Mail ports are available to accept the call. (This 
signals the Voice Mail port [usually Auto-Attendant] to let 
the caller to leave a message.)
8Forwarded to Extn. The extension dialed is forwarded to another, non-Voice 
Mail extension.
9Confirmation Tone The Message Waiting Lamp On or Message Waiting Lamp 
Off code is dialed successfully.
#9Disconnect The caller disconnects. The central office must set a CPC 
signal to the PBX line for this signal to work for CO calls.Ta b l e  1 1  
Code
(default)Call State Sent to the Voice Mail Port When...
The Remainder of this section consists of step-by-step guides for software verification
and programming of the recommended Panasonic PBX systems.
If you have any problems as you go through this section, please call Panasonic Technical
Support at (201) 392-4843 
						

							3.3 CONNECTING THE VPS WITH PANASONIC KX-T SERIES PBXs
50INTEGRATING THE VPS WITH PANASONIC KX-T PHONE SYSTEMS
3.3 CONNECTING THE VPS WITH PANASONIC 
KX-T SERIES PBXs
3.3.1 KX-TVS50/80 Programming for Inband Integration
Set parameters from the System Administration Terminal. The table below lists recommended 
parameters for Panasonic KX-T series PBXs.
Table 12 
PBX Type Other 
ManufacturersT308/
T616T1232 T96 T336 TD816/
1232TD308 TA series
Integration Mode None None None None None None None None
Inband Inband Inband Inband Inband Inband Inband
Operator Transfer 
SequenceFX (A) FTX 
(A)FTX (A) FTX 
(A)FTX 
(A)FTX (A) FTX 
(A)FTX (A)
Extension 
Transfer 
SequenceFX (A) FTX 
(A)FTX (A) FTX 
(A)FTX 
(A)FTX (A) FTX 
(A)FTX (A)
Alternate 
Extension 
Transfer 
SequenceFX (A) FTX 
(A)FTX (A) FTX 
(A)FTX 
(A)FTX (A) FTX 
(A)FTX (A)
Reconnect 
Sequence on 
BusyFWW FWW FWW FWW FWW FWW FWW FWW
Reconnect 
Sequence on No 
AnswerFWW FWW FWW FWW FWW FWW FWW FWW
Reconnect 
Sequence on 
Refuse CallFWW FWW FWW FWW FWW FWW FWW FWW
Light-On 
Sequence for 
Message Waiting 
Lamp* N/A T701X# T#91X
T9XT701X T701X T701X#
Light-Off 
Sequence for 
Message Waiting 
Lamp* N/A T702X# T#90X T#9X T700X T700X T702X#
Call Waiting 
Sequence* N/A 1 N/A N/A 1 1 1