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1、Interconnect Planning KI-1582 Telecenter IV Interconnect Planning RAULAND-BORG CORPORATION ? 3450 West Oak-ton Street, Skokie, Illinois 60076-2951 ? (708) 679-0900 Table of Contents Introduction .1 Survey of TCIV System Requirements.2 Survey of TCIV-PBX System Requirements. 4 E KI-1584, the Programm
2、ing Procedures; and the Glossary of Terms in KI-1587, Drawings and Data. warning: Do not attempt to plan an interconnect system without fully understanding how to obtain the features available through system programming. If the TCIV will not be connected to an on-premise PBX, go to the Survey of TCI
3、V System Requirements; otherwise, go to the Survey of TCIV-PBX System Requirements. 1989 Rauland-Borg Corporation (Orig. l/89) Page 1 of 38 RadioFans.CN 收音机爱 好者资料库 Interconnect Planning Survey of TCIV System Requirements Summary: Get a general view of the interconnect and communication problems to b
4、e addressed by the TCIV system at this location and a full picture of the current system. Obtain data on the numbers and types of stations and trunks in the present and required system. If planning for a new construction project and there is no site to visit and little information available, try vis
5、iting a similar organization in the same district. Then, make a point of repeating the survey on-site before the actual installation: at that time, make any changes required to ensure the system design will meet the customers requirements. Note: This procedure is for a system supported fully by the
6、TCIV. A separate survey procedure is provided for systems where a PBX will handle most of the incoming traffic (Survey of TCIV- PBX System Requirements). Step 1. Determine which of the following cases best describes the office situation where incoming calls are to be answered and if it is representa
7、tive of how the customer wants to operate. Case 1. The primary task of answering incoming calls, at least during the busy hour, is assigned to one person (the attendant or operator) who will transfer most calls to appropriate adminis- trative stations. Answering calls and transferring them is this p
8、ersons job and little time will be spent handling calls in any other fashion. A few people may be available to help answer incoming calls when necessary; however, it is desired that the call answering system be efficient enough not to restrict the main attendant from quickly answering and transferri
9、ng calls. case 2. No attendant is assigned. Instead there are 3 to 6 people in the office capable of answering and handling most calls directly. During the busy hour there will be enough people to handle all of the calls as long as they have the ability to occasionally put someone on hold. Any one o
10、f these people can easily pick up on any call. Transferring a call is a fairly infrequent require- ment. If case 1: A TC4400 Call Control Console is indicated. However, a KSU may work satisfactorily if the maximum rate of answering incoming calls does not exceed 20 to 30 per hour for any individual
11、and transfer-target extensions are seldom busy. If case 2: A KSU approach may provide the best solution. Step 2. Estimate the maximum number of incoming calls expected during any one hour of the day or week: Maximum Expected Calls/hour = Step 3. Determine how many administrative phones are required
12、and the number which will have access to outside lines: Administrative Phones With Access: Total Administrative Phones: Page20138 1989 Rauland-Borg Corporation (Orig. 1/89) RadioFans.CN 收音机爱 好者资料库 Interconnect Planning Step 4. Determine if the number of current or planned general purpose Central Off
13、ice trunks (ex- cluding DIL trunks dedicated to private lines) in the system will exceed 10. If so, system requirements may exceed TCIV traffic handling capacity. Note: Use the Traffic Handling Requirements procedure provided in this manual to make this de- termination. (General purpose Central Offi
14、ce trunks are those used for answering incoming calls and are shared by administrative phones placing outside calls.) step 5. Step 6. Step 7. Step 8. Step 9. If the new system will have significantly more outgoing traffic than the previous system, increase the trunk requirements accordingly. If the
15、trunks are Centrex type and it will be necessary to make transfers within the Centrex system, special training will be required for using the built-in remote hook-flash signal of the TCIV or the TC4400 Console (refer to the In-Service Training and Remote Hook-Flash sec- tions of this manual). Determ
16、ine what wiring and station equipment from the original system will be usable in the TCIV. If the local Central Office does not provide tone dialing service, obtain a convertor for each trunk line. Convertors Required: Refer to the Ordering Checklist (following the Interconnect Layout Section) and e
17、nsure all hardware requirements are met. Interconnect Planning Survey of TCIV-PBX System Requirements Summary: Special considerations are required when planning systems which interface with a Central Office through a PBX. These include: the number and type of PBX lines which will interface with the
18、TCIV; TCIV feature restrictions which may result from the type of interlace; program- ming requirements; and, additional hardware to compensate for combined TCIV and PBX line losses. Other considerations include variations in transfer procedures and visual indications available to the PBX attendant
19、for transferring calls to TCIV stations. Step 1. step 2. Step 3. Determine the number of extensions required for people mainly involved in internal com- munications, paging, and other TCIV functions: Assign these extensions to the TCIV. TCIV extension8 Determine the number of extensions required for
20、 people who mostly communicate with the outside world: Assign these extensions to the PBX. PBX extensions To support traffic between the TCIV and PBX, determine the number of E however, the following limitations make this the least preferred type of interlace. The keep-alive process must be used by
21、PBXextensions to hold the TCIV until an off- hook TCIV extension enters the connection. When ringing is used to indicate the start and stop of a service request to the TCIV, a time the complete current rules will be in the current copy of the FCCs Rules. All of the pertinent rules must be followed.
22、The TC4171 (COA) should only be connected to a standard subscriber line via the proper coupler installed by the telephone company; it should never be connected to a party line or coin line. You must give the local telephone company: a. notice that you want to install an FCC-approved device to their
23、line (similar notice is required of a final disconnect). b. the registration number and the ringer equivalence, which are marked on the compli- ance label, and C. the connection required for the TC4171 (COA), the RJ21X, RJllC, or RJllW (see this manual, M-1582, the installation manual, IU-1583, and
24、wiring diagrams KM-0714 and KM-0716). Once the telephone company has installed the proper connector, insert the plug coming from the TC4171 wire-wrap terminals. No repairs may be made to the TC4171 (COA) or to the TC4001 (main central assembly) while the TC4171 is connected to the phone line. If any
25、 malfunction occurs on this interconnect device or with the TC4001, disconnect the TC4171 and replace it with a unit known to be operating. If the Telecenter equipment is adjudged to be operating properly but the problem still exists, contact the telephone company. Reconnect the phone system only af
26、ter determining that this equipment is not the source of the malfunction. If the TC4171 (COA) should cause harm to the telephone network, the telephone company is required, where practicable, to notify you that temporary discontinuance of service may be required. If advance notice is not practicable
27、, the telephone company is permitted to discontinue its service immediately, provided that such an action is reasonable under the circumstances. In the case of temporary dis continuance, the telephone company is required to: a. Promptly notify you of the temporary discontinuance. b. C. Give you the
28、opportunity to correct the situation that caused the discontinuance. Inform you of your rights to bring a complaint to the FCC pursuant to the procedures set forth in that agencys Rules. Copies of the procedure for making a complaint can be obtained from Rauland-Borg. The telephone company can make
29、changes in its facility, operations, equipment, or procedures, pro- vided that the changes are reasonably required and are consistent with the FCCs regulations. If these changes render the customers equipment incompatible or require that it be modified, the telephone company is required to give suff
30、icient advance notice in writing to allow the customer the opportunity to maintain uninterrupted service. Do not modify, repair, or alter this registered interconnect device, the TC4171 (COA): any such actions will void the warranty and could result in discontinuance of service from the telephone co
31、mpany. If the TC4171 requires service, return it to the Rauland-Borg Corporation. 1989 Rauland-Borg Corporation (Orig. l/89) Page 7 of 38 Interconnect Planning Call Answering Devices Summary: Any lnterconnected system requires a method for answering and transferring calls. Four options exist for cen
32、tralized call answering: One or more Attendant Phones, the TC4400 Call Control Console, an Attendant Key System, or a separate PBX. The choice depends on the business environment identified when performing the Survey of TCIV (or TCIV-PBX) System Requirements and the Traffic Handling Requirements sec
33、tions of this manual, as well as a variety of economic considerations. Call Answering Device Selection Criteria Use stand-alone one-, two-, or three-line phones as the primary means of answering outside calls only in smaller systems with low traffic requirements. Review the following section on usin
34、g DIL trunks and then refer to the Call Answering Device Implementation Data Sheets to determine which will best meet the unique site requirements. Call Answering Device TC4400 Call Control Console Key System Unit (KSU) Private Branch Exchange (PBX) Direct Inward Lines (DIL) Implementation Data Shee
35、t l of 3 2 of 3 3 of 3 Private DIL Public DIL DIL Access DIL trunk lines can be used alone or to modify incoming-call answering service for each type of call-answering device. DIL trunks are generally grouped together and adjacent to other trunk groups. When the TCIV senses an incoming call on a DIL
36、 trunk, it rings the owner administrative phone line. DIL trunks are designed to look like private lines to a remote system (i.e., someone on the outside dials a normal seven-digit number and the central office sends a ring signal to the TCIV which then rings the owner administrative phone). When th
37、e call is answered, the TCIV answers the trunk and connects it to the administrative line through one of the sixteen links. To the outside caller, the TCIV is transparent and the call seems to go directly to the private line. However, since the connection is made through the TCIV, the administrator
38、has the ability to transfer the call to any other TCIV extension. Also, since the administrator is connected to the TCIV, paging and internal communication functions can be performed with the same instrument. In many cases DIL owners always use their own DIL trunks when placing outgoing calls. When
39、this is done, by turning the B:3 attribute on, the line is Inaccessible to other outgoing callers. This configuration allows a busy signal to be given whenever callers from the outside attempt to call the DIL owner when he/she is involved in an outside call. Also, the owners DIL line is always avail
40、able, even when all other trunks are in use. The DIL owner can only be blocked from dialing out when all trunks are busy and he/she has already transferred an outside call to another internal station. If a DIL trunk is made public, byturning the B:3 attributeoff, anyonemayuseitwhoisauthorized toplac
41、eoutgoingcalls. If public DIL trunks are organized in a normal hunt group with dial 9 access for outside calls, the first one tried will tend to be busy most of the time and incoming DIL calls will be blocked. The circular hunt described in XI-1584 (Programming) may be used to prevent this. However,
42、 it is preferable to configure DIL trunks as private. It is possible to enable dial 9 access for all outside calls and still have DIL owners get their own lines. Group private DIL lines (B:3on) in front of the other trunks (i.e., at lower physical numbers) and set the hunt bit on each trunk. Then, t
43、he TCIV will always hunt for an outside line through the private DIL trunk group first, giving DIL access to owners but not to others. Page 8 of 38 1989 Rauland-Borg Corporation (Orig. 1/89) Interconnect Planning Busy DIL If the DIL trunk owners extension is busy when the TCIV senses an incoming cal
44、l, the TCIV cannot answer the call because it cannot be put through to the owner. The TCIV provides two programmable options for handling this situation: Send the call to the attendant line so a message can be taken or a page made (B:7 OFF). Do not respond to the call until the DIL owner hangs-up an
45、d becomes available (B:7 ON). Note: Complaints about unanswered ringing may arise if the call is not sent to the attendant and is ignored by the system. Outside callers will continue to hear ringing until the line becomes available and is answered. Auxiliary DIL DIL trunks may be used to optimize sy
46、stem configuration when a centralized call answering device is used to handle incoming calls as described below. Answering Device Suggested DIL Configuration and System Operation TC4400, KSU or PBX Provide DIL trunks for private lines listed in the public telephone directory. TC4400 or KSU If a sepa
47、rate night-time set-up requires assigning different trunks and outside numbers to various stations (e.g., Gymnasium, Music Room, etc.), use the TClVs double EEPROM with an external day/night switch to convert some AAI trunks to DIL trunks at night (see KM0896). KSU If it is necessary for the attenda
48、nt to distinguish between outside lines or if several key-phone attendants are responsible for answering certain lines, wire each DIL trunk directly to a specific key phone line. Using the configuration described above, restrict keys associated with DIL lines to incoming traffic only and provide sep
49、arate keys for calling out. PBXIf the PBX attendant must make frequent transfers to a specific TCIV station, use a DIL trunk wired through a TC4171 Central Office Adapter (COA) between the PBX and TCIV. When the PBX rings the extension connected to the COA, the TCIV will ring its station: When the TCIV station goes off-hook to the COA, it will si
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