[comp.dcom.telecom] NY/Metro One Switch "Update"

DREUBEN@eagle.wesleyan.edu (Douglas Scott Reuben) (05/28/91)

In case anyone uses Metro One in the NY/NJ area, I am told that on
June 14th, they plan to update their switching equipment to Ericson
switches.

When I asked Metro One/NY if they anticipated any outages, they
replied that calls may be blocked for a few moments evey now and then
after business hours when they are updating the system, but they don't
anticipate any major downtime problems for extended periods of time.

I recall that when they've had previous updates, there were outages of
a few minutes to about an hour or so, so I'm inclined to agree. Note
that DMXed customers from Cell One/South Jersey and Metro Mobile/CT
who are in the area (or who have callers use the NYC roam port, which
Metro doesn't like ...;) ) served by Merto One may also experience
problems receiving calls AND completing OUTBOUND calls.

The degree of service interruption tends to vary, so sometimes you can
dial out as long as you use the full number with area code (which you
don't have to use normally if you are calling to your home area),
whereas at other times, all outgoing calls are blocked. I've noticed
that DMXed roamers, ie, those from South Jersey, Connecticut, and
Western Mass are more frequently blocked than "other" roamers. I've
been told there is a correlation due to the DMX, but not one could
explain why. The furthest I've ever got was "Oh, it's just the way the
software works." Hmmm ....

Anyhow, just though I'd mention the update. I'm told that the new
switches are very dynamic, and have a great deal of new "roaming"
features. Anyone have any idea what this means? Nationlink?  Something
else?


Doug	dreuben@eagle.wesleyan.edu  //  dreuben@wesleyan.bitnet