- 6. Signaling
- Local Number Portability (LNP) is a pressing
issue, and a concern for any projected addressing system. As presently
envisioned portability will permit subscribers to retain their telephone
address, and the address of any of their other telecommunication devices,
regardless of which LEC they subscribe to or where they might relocate
within their original NPA (Toth,
1995). The Telecommunication Act
of 1996 has mandated that portability must be implimented within the United
States, beginning 31 March 1998. Regardless of the best efforts of the
North American Numbering Council (NANC) of the Federal Communications Commission (FCC), the schedule is falling further and further behind, with serious
nationwide implimentation delayed by perhaps a year.
- The objective of the Telecommunication
Act is to promote market competition between the LECs. Consequently all
of the various additional addresses subscribers might have for fax machines,
cellular phones and so forth would be equally portable within any NPA.
Unlike the LTNP options, according to MTAS these latter addresses are simply
sub-addresses of the subscriber's primary address. That portability extending
to any primary address will extend equally to all of its sub-addresses
is a natural outcome of MTAS. In this manner any user can subscribe to
different LECs for different services, increasing market competition. The
PSTN will have to be extensively reprogrammed to achieve this full NPA
portability, a task now obvious to be far more complex than would be reprogramming
- A central database operated by a Portability
Administrator will have to be established in each NPA to cover all of the
LECs operating in that area. Subscribers moving outside their COX area
who request the same addresses at their new locations will have those addresses
registered with the Portability Administrator. Calls to the old COXs will
be shunted to the central database and from there to the new locations.
With MTAS all of the sub-addresses would be automatically registered with
the database operator.
- 8. IMPLEMENTATION