Local Automatic Message Accounting: Difference between revisions

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'''Local Automatic Message Accounting (LAMA)''' is a method of billing for long distance calls where the billing records are created and stored at the same central office that the call originated from. This is in contrast to [[Centralized Automatic Message Accounting|CAMA]], where the call records are sent elsewhere for storage.

'''Local Automatic Message Accounting (LAMA)''' is a method of billing for long distance calls where the billing records are created and stored at the same central office that the call originated from. This is in contrast to [[Centralized Automatic Message Accounting|CAMA]], where the call records are sent elsewhere for aggregation and storage.

LAMA was first introduced in a step by step office ~~Los Angeles~~ in the ~~1941~~. LAMA was then re-introduced in an improved form with the No. 5 Crossbar ~~switch~~ in the late 1940s. LAMA was subsequently outfitted into the No. 1 Crossbar and Panel in the late 1950s.

LAMA was first introduced in a step by step office Culver City, CA in the January 1944<ref>[https://telecomarchive.s3.us-east-2.amazonaws.com/docs/bsp-archive/BLR/22-11.pdf Bell Laboratories Record. (1944). Automatic Ticketing (Volume 22, Issue 11)]</ref>. When a customer dialed a billable call, an operator was connected to the line and requested the subscriber's telephone number. The operator then keyed this number into her switchboard, and a ticket was printed automatically by a ticket printing machine attached to the outgoing selector.

Although this installation was successful, it did not continue to be deployed in other offices. Instead, further development was undertaken and LAMA was then re-introduced in an improved form with the [[5XB|No. 5 Crossbar]] in the late 1940s. LAMA was subsequently outfitted into the [[Number One Crossbar Switch|No. 1 Crossbar]] and [[Panel]] in the late 1950s.

== References ==

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-'''Local Automatic Message Accounting (LAMA)''' is a method of billing for long distance calls where the billing records are created and stored at the same central office that the call originated from. This is in contrast to [[Centralized Automatic Message Accounting|CAMA]], where the call records are sent elsewhere for storage.
+'''Local Automatic Message Accounting (LAMA)''' is a method of billing for long distance calls where the billing records are created and stored at the same central office that the call originated from. This is in contrast to [[Centralized Automatic Message Accounting|CAMA]], where the call records are sent elsewhere for aggregation and storage.
-LAMA was first introduced in a step by step office Los Angeles in the 1941. LAMA was then re-introduced in an improved form with the No. 5 Crossbar switch in the late 1940s. LAMA was subsequently outfitted into the No. 1 Crossbar and Panel in the late 1950s.
+LAMA was first introduced in a step by step office Culver City, CA in the January 1944<ref>[https://telecomarchive.s3.us-east-2.amazonaws.com/docs/bsp-archive/BLR/22-11.pdf Bell Laboratories Record. (1944). Automatic Ticketing (Volume 22, Issue 11)]</ref>. When a customer dialed a billable call, an operator was connected to the line and requested the subscriber's telephone number. The operator then keyed this number into her switchboard, and a ticket was printed automatically by a ticket printing machine attached to the outgoing selector.
+Although this installation was successful, it did not continue to be deployed in other offices. Instead, further development was undertaken and LAMA was then re-introduced in an improved form with the [[5XB|No. 5 Crossbar]] in the late 1940s. LAMA was subsequently outfitted into the [[Number One Crossbar Switch|No. 1 Crossbar]] and [[Panel]] in the late 1950s.
+== References ==