Main Office bldg #2528

Phone: 928-871-7740

Fax:     928-871-7741

Contact Information:
PO Box 2928
Morgan Blvd. Bldg. #2528/7447
Window Rock, Arizona 86515

© 2019 by NNTU

Radio Shop bldg #7447

Phone:   928-871-7743

Fax:       928-871-7742

Centrex Features 

To activate or deactivate telephone features, press the appropriate feature

button on your phone se or dial the access code indicated below.

Hold (PERMANENT)

Activate     - LINK *472

Reconnect - Pickup handset

Activate  - LINK *472

Retrieve - from any extension,

#473 + extension number

CALL PARK

Activate     - LINK *476 + Extension number,

                    replace handset 

Cancel       - LINK *476 replace handeset

CALL PICK UP

Activate  - LINK, *474 replace handset

Cancel    - LINK, *474 replace handset

*483

LAST NUMBER REDIAL

Business Set Feature (M5216/M5316 set)

Package includes but not limited to the following features:

Auto Answer Back                                      Auto Dial                                          Busy Override

Call Back Queuing                                      Call Forward                                      Call Forward Reason Display

Call Forward/Auto Dial Display                      Call Park                                           Call Pickup

Call Waiting                                              Display Called Number                         Display Calling Number 

End-To-End Signaling                                 Feature Code Access                           Group Intercom

Held Calls                                                 Individual (POTS) Business Line            Intercom

Listen On Hold                                          Make Set Busy                                   Malicious Call Hold 

Message Wait Indicator                               Multiple Appearance Directory               On Hook Dialing 

Query Time Key                                        Ring Again                                        Short Hunt

Speed Calling                                           Three-way Calling                               Transfer

Auto Answer Back 

Auto answer back feature is when implemented on a business set, allow any incoming call to the primary directory number (PDM) of the set to be automatically answered after four seconds of ringing. 



Auto Dial 

Auto dial allows the business set user to call a frequently dialed number by pressing the assigned feature key. 



Automatic Line

Business set automatic line (AUL) is a directory number (DN) feature that may be assigned to individual DN on a business set station, including the primary DN.



Busy Override

Busy set override allows a business set to gain access to a busy station by pressing the busy override key. 



Call Back Queuing 

Call back queuing allows a business set user to request a call back when encountering an all trucks condition on the customers outgoing trucks.



Call Forward

Call forward allows a business set user to forward calls to another Meridian Digital Centrex (MDC) user. Optional call forward conditions are call forward-no answer, call forward intra-group.



Call Forward Reason Display 

Call forward reason display allows business set user to identify the type of forwarded condition when they receive forwarded call. Requires display option on customer equipment. 



Call Forward/Auto Display 

Call forward/auto dial displays the number currently programmed for the call forward or the automatic dial features. Requires display option on customer equipment. 



Call Park 

Call park enables a business set user to park a call against their directory number. The parked call can be retrieved from any station by dialing the retrieve code and the directory number against which the call is parked. 



Call Waiting 

Call Waiting provides a tone to the MDC user to alert them of another incoming call request. the called MDC station may acknowledge the new caller by placing the existing call on hold or by abandoning the existing call and receiving the new caller. 



Display Called Number 

Display called number provides visual feedback visual feedback of the number dialed on outgoing calls. Display called number only applies to intra-group calls. Requires display option on customer equipment. 



Display Calling Number 

Display calling number provides business set user with visual feedback concerning incoming calls. Displays called number only applies to intra-group calls. Requires display option on customer equipment. 



End-To-End Signaling

End-To-End signaling provides the capability to out pulse dual-tone multi-frequency digits while active on a call. 



Feature Code Access

Feature code access provides an alternate method of accessing MDC features other than through the use of feature keys. 



Feature Display  

Feature display provides the business set user with visual feedback for feature activation, including features such as three-way calling, call transfer, call waiting, call park, ring again, call pickup, busy override and speed call.  Requires display option on customer equipment.  
  

Group Intercom  
Group intercom allows an MDC user to call a member of a pre-designated group by using abbreviated dialing.  
  

Held Calls  
Held calls allows a business set user to hold an established call on the business set.  The MDC user may originates or receive another call on an idle directory number.  
  

Individual (POTS) Business Line  
Individual (POTS) business line allows the business set subscriber the appearance of the POTS line as one of the DN keys on the set.  
  

Intercom  
Intercom feature allows a customer to directly terminate on a pre-designated set by depressing the intercom key on the business set.  
  

Listen On Hold  
Listen on hold allows a business set user to monitor a call through the speaker in customer premises equipment.  When the called party answers, the MDC business set user must remove the handset from the cradle.  
  

Make Set Busy  
Make set busy allows a business set user to place their primary directory number in a busy condition to outside calls.  
  

Malicious Call Hold  
Malicious call hold (MCH) feature allows a business set subscribe to hold a connection within the switching unit on a malicious call, enabling the call to be traced back to the originating party.  
  

Message Wait Indicator  
Message wait Indicator feature provides a message waiting lamp on the business set indicating a message is waiting to be retrieved.  This applies to only the primary directory number not other directory numbers available from that set.  
  

Multiple Appearance Directory Number  
Multiple appearance directory number allows a directory number to be assigned to more that one business set for multiple call arrangement.  With Single Call Arrangement (SCA) any business set user with the directory appearance may make or receive calls on the directory number.  SCA allows only one business set user to be active on the directory number at one time.  With Multiple Call Arrangements (MCA) more than one business set user can be active on the directory number at one time, limited by the number of appearances in the group.  
  

On Hook Dialing  
On hook dialing allows the MDC business user to originate calls without lifting the handset.  
  

Query Time Key  
Query time key displays the current time and date by activating the time key.  Requires display option on customer premises equipment.  
  

Ring Again  
Ring again allows the MDC business set user to monitor a busy set of directory number appearances on the business set.  The short hunt is limited to the number of directory appearances on the business set.  
  

Short Hunt  
Short hunt allows incoming calls to a business set user to hunt over a set of directory number appearance on the business set.  The short hunt is limited to the number of directory appearances on the business set.  
  

Speed Calling  
Speed calling allows a MDC business set user to access frequently dialed numbers by utilizing an abbreviated code.  
  

Three-Way Calling  
Three-way calling enables an MDC business set user to establish a three-way call.  
  

Transfer  
Transfer enables an MDC business set user to transfer a call to another MDC user.





Single Set Feature (M8009/M9216/M9316 set)    
Package includes but not limited to the following features:

                      Automatic Call Back (Ring Again)                          Blind Transfer Queuing 

                      Call Back Queuing                                              Call Forward - All Calls 

                      Call Waiting                                                      Consultation Hold 

                      End-To-End Signaling                                         Last Number Redial 

                      Message Wait Indicator (Stutter Dial Tone)             Off-Hook Queuing 

                      Permanent Hold/Call Hold                                   Speed Call - Individual Long​

                      Speed Call - Individual Short                               Station to Station Dialing 

                      Three Way Conference                                       Transfer 





Automatic Call Back (Ring Again)  

Automatic call back (ring again) feature allows a station user encountering a busy station to be notified when the busy station becomes idle and to be placed automatically in a ring again mode.  
  

Blind Transfer Queuing  
Blind transfer queuing allows an MDC station to transfer an established call to another MDC group member without waiting for the transferred station to answer.  
  

Call Back Queuing  
Call back queuing feature is a station user encountering an all-truck busy condition has the option of being notified when a truck becomes idle, and then being automatically connected to the number.  
  

Call Forward - All Calls  
Call forward - all calls allows an MDC customer to have incoming calls to a station automatically forwarded to a predetermined telephone number.  
  

Call Waiting  
Call waiting feature informs an MDC station line that is on an established call that a third party is trying to reach them.  
  

Consultation Hold  
Consultation hold allows an MDC station to place an active call on temporary hold.  
  

End-To-End Signaling  
End-to-end signaling allows an MDC station user, while in the talking state, to send DTMF tones to the other end.  
  

Last Number Redial  
Last number redial feature enables a customer to redial the last number called by depressing a single key rater than the entire number.  
  

Message Wait Indicator (Stutter Dial Tone)  
Message wait indicator (stutter dial tone) feature permits a station user to be notified of a waiting message.  Stuttered dial tone is used for stations without Message Waiting (MAT) lamps.  
  

Off-Hook Queuing  
Off-hook queuing feature, a call that cannot be completed because an idle outgoing truck is not available among the inexpensive route set, may wait off-hook for an idle truck.  When an outgoing truck becomes available, the call progresses in the normal manner.  
  

Permanent Hold/Call Hold  
Permanent hold/call hold allows an MDC station user to place a call on hold for any length of time.  
  

Speed Call - Individual Long  
Speed call - individual long allows the MDC station user to place calls to list of frequently called numbers by dialing two digits than the completed directory number.  Limited to 30, 50 or 70 frequently call numbers.  
  

Speed Call - Individual Short  
Speed call - individual short allows the MDC station user to place calls to list of frequently called numbers by dialing fewer digits than the complete directory number.  Limited to eight frequently called numbers.  
  

Station to Station Dialing  
Station to station dialing call my be dialed to complete between any two station lines of digital MDC group.  
  

Three Way Conference  
Three way conference allows an MDC station line to establish a three way conference with two other parties.  
  

Transfer  
Transfer enables an MDC user to transfer a call to another MDC user.