BID-0013 (May 2001) specifies the information to be transmitted between the Enhanced 9-1-1 (E9-1-1) Automatic Location Identification (ALI) System and terminals at the 9-1-1 Public Safety Answering Points (PSAPs). This additional information allows support of E9-1-1 features to identify the wireless cell site / sector from which 9-1-1 dialed calls are received using the existing telephone number field, to identify the wireless caller's calling party number (call back number) which is displayed in case of wireless call, to add a new field on the printer to identify the telephone number of the Local Service Provider responsible for updating the subscriber or wireless Emergency Service Routing Digit (ESRD) records, to add a new DATA LSP ID field to identify the Local Service Provider responsible for updating the subscriber and wireless ESRD records. In addition, the PSAP Name field will be shortened to carry 16 characters instead of 32, the Additional Information field length will be increased from 22 characters to 60 characters, a new Province field will be added and finally, an Error Flag will be displayed to allow the call taker to identify that the ALI record carries an address the 9-1-1 main database indicates is suspicious. Except for the BID Switch, that will need to support Enhanced Multi Frequency (E-MF) protocol to carry two strings of 10-digit between the 9-1-1 tandem and the PSAP equipment (i.e., wireless ESRD and wireless caller's calling party number), this information is transmitted between the ALI System and the PSAP using the existing interfaces. Finally, a new message type with ESCO "NPA-911-0TRK" (Message 
Type 8) is added for BID Switch. These changes are expected to become operational in early IVQ 2001.

E9-1-1 Service delivers location details regarding the origin of a 9-1-1 dialed call to the designated PSAP. Details such as the time and date, calling line number, street address can be received from the network by the terminal equipment at the PSAP.

Terminals listed in Appendix 1 of the Bell Disclosure Document BID-0013 are not expected to be impacted because the additional and modified information will simply be printed/displayed along with the currently available information.

For terminals listed in Appendices 2, 5 and 6, the revised message formats need to be implemented by the user to support the additional and modified E9-1-1 service capabilities outlined above.

These interfaces were previously disclosed in Bell Interface Document BID-0013, dated April 2001 in Bell Industry Advisory BIA-1f. The revised interfaces are described in Bell Interface Document BID-0013, dated May 2001. Bell Canada Interface documents are available in both electronic and hard copy formats. Bell will invoice recipients $50 for each electronic version, and $65 for each hard copy version. Previous purchasers of BID-0013 will be invoiced $15 for the updated electronic version and $20 for the updated hard copy version. These prices are subject to change without notice.