00

Plain Old Telephone Service (POTS) - non-coin service requiring no special treatment

Multiparty line (more than 2) - ANI cannot be provided on 4 or 8 party lines. The presence of this 01 code causes an Operator Number Identification (ONI) function to be performed at the distant location. The ONI feature routes the call to a CAMA operator or to an Operator Services System (OSS) for determination of the calling number.

ANI Failure - the originating switching system indicates (by the 02 code), to the receiving office that the calling station has not been identified. If the receiving switching system routes the call to a CAMA or OSS, the calling number can be verbally obtained and manually recorded. If manual operator identification is not available, the receiving switching system, for example, an interLATA carrier without operator capabilities, can reject the call.

Unassigned

Station Level Rating - The 06 digit pair is used when the customer has subscribed to a COS in order to be provided with real time billing information. For example, hotel or motels, served by PBXs, receive detailed billing information, including the calling party’s room number. When the originating switching system does not receive the detailed billing information, for example, room number, this 06 code allows the call to be routed to an operator or operator services system to obtain complete billing information. The rating or billing information is then provided to the service subscriber. This code is used only when the Directory Number (DN) is not accompanied by an automatic room or account identification.

Special Operator Handling Required - calls generated from stations that require further operator or OSS screening are accompanied by the 07 code. The code is used to route the call to an operator or OSS for further screening and to determine if the station has a denied-originating COS or special routing or billing procedures. If the call is unauthorized, the calling party is routed to a standard intercept message.

Unassigned

Not assignable - conflict with 10X test code

Unassigned

Not assignable - conflict with international outpulsing code

Automatic Identified Outward Dialing (AIOD) - without AIOD, the billing number for a PBX is the same as the PBX Directory Number (DN). With the AIOD feature, the originating line number within the PBX is provided for charging purposes. If the AIOD number is available when ANI is transmitted, code 00 is sent. If not, the PBX DN is sent with ANI code 20. In either case, the AIOD number is included in the AMA record.

Unassigned

Coin or Non-Coin - on calls using database access, for example 800, ANI II 23 is used to indicate that the coin or non-coin status of the originating line cannot be positively distinguished for ANI purposes by the SSP. The ANI II pair 23 is substituted for the II pairs which otherwise indicates that the non-coin status is known, that is 00, or when there is ANI failure. ANI II 23 can be substituted for a valid 2-digit ANI pair on 0-800 calls. In all other cases, ANI II 23 must not be substituted for a valid 2-digit ANI II pair which is forward to an SSP from an EAEO.

Some of the situations in which the ANI II 23 can be sent:

• Calls from non-conforming end offices (CAMA or LAMA types) with combined coin/non-coin trunk groups.

• 0-800 Calls

• Type 1 Cellular Calls

• Calls from PBX Trunks

• Calls from Centrex Tie Lines

Code 24 identifies a toll free service call that has been translated to a POTS routable number using the toll free database that originated for any non-pay station. If the received toll free number is not converted to a POTS number, the database returns the received ANI code along with the received toll free number. Code 24 indicates a toll free service call since that fact can no longer be recognized simply by examining the called address.

Code 25 identifies a toll free service call that has been translated to a POTS routable number using the toll free database that originated from any pay station, including inmate telephone service. Specifically, ANI II digits 27, 29, and 70 are replaced with Code 25 under the stated condition.

Unassigned

Code 27 identifies a line connected to a pay station which uses network provided coin control signaling. II 27 is used to identify this type of pay station line irrespective of whether the pay station is provided by a LEC or a non-LEC. II 27 is transmitted from the originating end office on all calls made from these lines.

Unassigned

Prison or Inmate Service - the ANI II digit pair 29 is used to designate lines within a confinement or detention facility that are intended for inmate or detainee use and require outward call screening and restriction, for example, 0+ collect only service. A confinement or detention facility can be defined as including, but not limited to, Federal, State or Local prisons, juvenile facilities, immigration and naturalization confinement or detention facilities, which are under the administration of Federal, State, City, County, or other Governmental agencies. Prison or Inmate Service lines are identified by the customer requesting such call screening and restriction. In those cases where private pay stations are located in confinement or detention facilities and the same call restrictions applicable to Prison or Inmate Service required, the ANI II digit for Prison or Inmate Service applies if the line is identified for Prison or Inmate Service by the customer.

Intercept - where the capability is provide to route intercept calls, either directly or after an announcement recycle, to an access tandem with an associated Telco Operator Services System, the following ANI codes must be used:

• 30 - Intercept (blank) - for calls to unassigned DN.

• 31 - Intercept (trouble) - for calls to DNs that have been manually placed in trouble-busy state by Telco personnel.

• 32 - Intercept (regular) - for calls to recently changed or disconnected numbers.

Unassigned

Telco Operator Handled Call - after the Telco Operator Services System has handled a call for an IC, it can change the standard ANI digits to 34, before outpulsing the sequence to the IC, when the Telco performs all call handling functions, for example, billing. The code tells the IC that the BOC has performed billing on the call and the IC only has to complete the call.

Unassigned

Unrestricted Use - locally determined by carrier

Unassigned

Outward Wide Area Telecommunications Service (OUTWATS) - this service allows customers to make calls to a certain zone(s) or band(s) on a direct dialed basis for a flat monthly charge or for a charge based on accumulated usage. OUTWATS lines can dial station-to-station calls directly to points within the selected band(s) or zone(s). The LEC performs a screening function to determine the correct charging and routing for OUTWATS calls based on the customer’s COS and the service area of the call party. When these calls are routed to the inter-exchange carrier using a combined WATS-POTS trunk group, identify the WATS calls with the ANI code 52.

Unassigned

TRS - ANI II digit pair 60 indicates that the associated call is a TRS call delivered to a transport carrier from a TRS provider and that the call originated from an unrestricted line, that is, a line for which there are no billing restrictions. Accordingly, if no request for alternate billing is made, the call is billed to the calling line.

Cellular or Wireless PCS (Type 1) - The 61 digit pair is to be forwarded to the inter-exchange carrier by the local exchange carrier for traffic originating from a cellular or wireless PCS carrier over type 1 trunks. Note: ANI information accompanying digit pair 61 identifies only the originating cellular or wireless PCS system, not the mobile directory placing the call.

Cellular or Wireless PCS (Type 2) - The 62 digit pair is to be forwarded to the inter-exchange carrier by the cellular or wireless PCS carrier when routing traffic over type 2 trunks through the local exchange carrier access tandem for delivery to the inter-exchange carrier. Note: ANI information accompanying digit pair 62 identifies the mobile DN placing the call but does not necessarily identify the true call point of origin.

Cellular or Wireless PCS (Roaming) - The 63 digit pair is to be forwarded to the inter-exchange carrier by the cellular or wireless PCS subscriber roaming in another cellular or wireless PCS network, over type 2 trunks through the local exchange carrier access tandem for delivery to the inter-exchange carrier. Note: Use of 63 signifies that the called number is used only for network routing and must not be disclosed to the cellular or wireless PCS subscriber. Also, ANI information accompanying digit pair 63 identifies the mobile DN forwarding the call but does not necessarily identify the true forwarded-call point of origin.

Unassigned

TRS - ANI II digit pair 66 indicates that the associated call is a TRS call delivered to a transport carrier from a TRS provider and that the call originates from a hotel or motel. The transport carrier can use this indication, along with other information, for example, whether the call was dialed 1+ or 0+, to determine the appropriate billing arrangement.

TRS - ANI II digit pair 67 indicates that the associated call is a TRS call delivered to a transport carrier from a TRS provider and that the call originated from a restricted line. Accordingly, sent paid calls must not be allowed and additional screening, if available, must be performed to determine the specific restrictions and type of alternate billing permitted.

Unassigned

Code 70 identifies a line connected to a pay station, including both coin and coin-less stations, which does not use network provided coin control signaling. II 70 is used to identify this type pay station line irrespective of whether the pay station is provided by a LEC or a non-LEC. II 70 is transmitted from the originating end office on all calls made from the lines.

Unassigned

Reserved for future expansion to a 3-digit code

Unassigned

Access for private virtual network types of service: the ANI code 93 indicates, to the IC, that the originating call is a private virtual network type of service call.

Unassigned

Unassigned - conflict with test codes 958 and 959

Unassigned