H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 3/545 (2006.01) H04M 3/42 (2006.01) H04Q 3/00 (2006.01) H04Q 3/66 (2006.01)
Patent
CA 2165856
A method of providing number portability for the treatment of calls from a calling party to a specific number of a called party is disclosed. An Initial Address Message (IAM) containing the calling and called party's numbers to enable said call to reach said terminating office is forwarded from an originating office to a terminating office. Once the IAM is received at the terminating office, a determination of whether the call is directed to a portable number is made. If the call is directed to a portable number, a release message containing an indication that the called party number is a portable number is forwarded from the terminating office to the originating office. Once the release message is received at the originating office, a TCAP query is launched from the originating office to an SCP if said release message contains an indication that the called party number is a portable number. At the SCP, the called party number is translated to obtain new routing information. A new IAM is then sent from the originating office to a terminating office associated with the new routing information.
Carkner R. William
Williams L. Lloyd
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
Stentor Resource Centre Inc.
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