Private Branch Exchange (PBX) Service. Bell Atlantic - SOUTH OPERATIONAL SUPPLEMENT

Transcription

1 Private Branch Exchange (PBX) Service Bell Atlantic - SOUTH OPERATIONAL SUPPLEMENT

2 Private Branch Exchange (PBX)Service GENERAL Private Branch Exchange (PBX) Service is composed of the following Trunk lines over which the end user can make and receive local and long distance calls Attendant positions for use by the end-user s operator in answering and routing calls. All incoming calls are answered by the attendant to handle all calls incoming, outgoing and internal. Lines for interconnecting within the end user s business are called station lines. Class Of Service Codes Applicable to existing customers only (prior to ) Type Of ServiceClass Of Service Codes* PBXAMB DMB GFM PQP BMB EMD JMB UMB CMB FMB NFB X22 HOTEL/MOTELARS CMH AMH EMH BMH FMH HOSPITALPCB PUB PLB PNB NOTE: Class of service will change to XMB if customer moves or disconnects and reconnects Applicable to all new customers (after ) Type Of Service Class Of Service Code ALLXMB - MessageXLB - Measured Page 1

3 MARYLAND, VIRGINIA, WEST VIRGINIA, & DISTRICT OF COLUMBIA TRUNKS Trunks are CO Lines which connect PBX Systems to Local Exchange Network and/or Long Distance Network and may be Local Exchange Lines, Foreign Exchange Lines, Foreign Zone Lines, Foreign CO Lines, and WATS Combination Trunks used for incoming or outgoing traffic. When used as an incoming trunk, the call is connected to station by attendant. When used as outgoing trunk an access code (normally 8 or 9) is dialed. Outward Trunk used for outgoing traffic. Incoming traffic routed to station by attendant. Outgoing calls connected to trunk by attendant. Inward Trunk is dedicated to incoming traffic. Calls placed directly by station users; no access code or attendant required. USOCS Trunk TypesUSOC* Message BusinessTMB++ Measured BusinessTVI++ Measured-Hotel ManagementVU8 Split Hobis TrunksTTTXA Split Hobis TrunksTTTXB Message HospitalTJT *see suffix chart below Suffix Chart SUFFIX Dial USOCTouch-Tone USOC* Inward Only1X1T OutwardOXOT Two-WayCXCT Direct Inward Dialing (DID) Service DID Service provides inward dialing from telecommunications network directly to lines associated with switching equipment on customer's premises. Requires special equipment and is provided only where DID Facilities are available in CO. DID telephone numbers (7-digits) are rated and provided in groups of 20.

4 Item USOC First Group of 20 #'s NDZ Each Add'l Group of 20 #'s NDJ DID Trunk Connection in CO-Per Trunk NDT Identified Outward Dialing (IOD) Service IOD Service provides station line identification of Outgoing Long Distance Messages originated from lines associated with switching equipment location on customer's premises. Requires special equipment and is provided only where IOD Facilities and telephone numbers are available in Central Office and switching equipment on customer's premises is properly equipped for IOD Service. Service USOC First 10 Trunks in group (Including Data Link) NDK* 11th thru 50th Trunk in group, per trunk NDL 51st and each Subsequent Trunk in group, per trunk NDM Split HOBIS Quotation Service Outward Trunks available to customer using Call Rating System (CRS) I.C.W. Quotation Service TTTXA - Recognizes and routes calls as follows: All 1 + Long Distance Calls are routed to DDD Network All 0 + Long Distance Calls are routed to TSPS or TOPS TTTXB (Available with IDDD) - Recognizes and routes calls as follows: All 0+ and 01 + Calls routed to TSPS or TOPS All 1 + routed to DDD All 011 routed to IDDD Quotation Functions for 1 + Calls are placed over DDD Network provided by CRS Quotation Functions for 0 + Calls are provided by: IntraLATA Calls - BACQS InterLATA Calls - Interexchange Carrier

5 NEW JERSEY TRUNKS Combined (obsolete) Trunks used for incoming or outgoing traffic. When used as an incoming trunk, the call is connected to station by attendant. When used as outgoing trunk an access code (normally 8 or 9) is dialed. Two Way No Dial Access Trunk used for incoming or outgoing traffic. Incoming traffic routed to station by attendant. Outgoing calls connected to trunk by attendant. Access code will not connect station to trunk Direct Dial (Outgoing only) Trunk is dedicated to outgoing traffic. Calls placed directly by station users; no access code or attendant required. New Jersey USOC TRUNKSMESSAGEFLAT INITIALAUXLINITIAL & AUXL COMBINED (Obsolete)TMCTM5TFC 2 WAY TMBTM2TFB NO DIAL ACCESS DIRECT DIAL OUTGOING ONLY TMUTM3TFU DIRECT INWARD DIALING - DID Direct Inward Dialing (DID) service is a one-way trunk service that allows incoming calls from the public network to reach a specific station line in a PBX without attendant assistance. DID lines cannot make outgoing calls. DID service consists of a series of telephone numbers in the central office that correspond to the individual PBX extension connected to the customer's PBX. For example, the main DID telephone number is : A caller dials The CO screens the number and routes the call to the PBX over the appropriate DID trunk group. The CO "transmits" the last 4 numbers (of the 7-digit telephone number) to the PBX. The PBX receives the "transmitted" number and routes the call to the appropriate extension. NEGOTIATION Gather the following information from the end-user: Number of trunks.

6 Number of station numbers (groups of 20 only) Are there any restrictions or conflicts Type of pulsing required by the customer's PBX: dial pulse or touch(dtmf) Number of digits outpulsed (four is typical) Type of start Wink, delay or immediate (touch-tone requires wink start) Ground or loop (not required for western PA) DID - DIRECT INWARD DIALING Trunk - Direct Inward Dialing CENTRAL OFFICE EQ 1 st 20 DID Sta Nos each additional group of 20 DID sta nos TRUNK ADDITIVE CHARGE Per trunk equipped USOC TDD ND8 NDJ NDT Group Number - per block of SNP 20 followed by /NV and a numeric AUTOMATIC IDENTIFIED OUTWARD DIALING - AIOD Enables PBX stations to be dialed directly, bypassing the PBX attendant. Provides automatic identification station line number when dialing message toll calls for subsequent billing. Each station associated with this service requires a 7 digit telephone number. This service is furnished with compatible PBX systems and must be provided on all trunk lines in a trunk group. Outgoing dialed calls which cannot be identified are bille AIOD - AUTOMATIC IDENTIFIED OUTWARD DIALING Central Office Equipment (see Note)USOC Initial 10 NDK Next 40 NDL 51 st & Over NDM NOTE: Exchange trunks equipped with AIOD service are charged exchange trunk rates

7 PENNSYLVANIA & DELAWARE TRUNKS Combination Trunks used for incoming or outgoing traffic. When used as an incoming trunk, the call is connected to station by attendant. When used as outgoing trunk an access code (normally 8 or 9) is dialed. Outward Trunk used for outgoing traffic. Incoming traffic routed to station by attendant. Outgoing calls connected to trunk by attendant. Inward Trunk is dedicated to incoming traffic. Calls placed directly by station users; no access code or attendant required. Pennsylvania/Delaware Trunk TypesUSOC* Message BusinessTMB++ Measured BusinessBWT++ Value - PakTKG Unlimited Calling (Grandfathered)TFB ALL TRUNKS GET DTLBX

8 DIRECT INWARD DIALING - DID - Pennsylvania/Delaware Direct Inward Dialing (DID) service is a one-way trunk service that allows incoming calls from the public network to reach a specific station line in a PBX without attendant assistance. DID lines cannot make outgoing calls. DID service consists of a series of telephone numbers in the central office that correspond to the individual PBX extension connected to the customer's PBX. For example, the main DID telephone number is : A caller dials The CO screens the number and routes the call to the PBX over the appropriate DID trunk group. The CO "transmits" the last 4 numbers (of the 7-digit telephone number) to the PBX. The PBX receives the "transmitted" number and routes the call to the appropriate extension. NEGOTIATION Gather the following information from the end-user: Number of trunks. Number of station numbers (groups of 20 only) Are there any restrictions or conflicts Type of pulsing required by the customer's PBX: dial pulse or touch(dtmf) Number of digits outpulsed (four is typical) Type of start Wink, delay or immediate (touch-tone requires wink start) Ground or loop (not required for western PA) DID Station Number (Banks of 20) TRUNK LINE DID STATION NUMBER USOC ND4 NDT NDN DID trunks equipped with usage packages: If the DID trunks have a calling package (USOC TMB or USOC TKG) the Special Identifying Telephone number (SIT) must be unique for all DID trunks except DID 1, which has the SIT of the main DID number associated with all trunks. The SIT is a DID station number. If used as a SIT, the station number cannot also be an NDN, i.e. the same number cannot appear on the records as both.