Voice Mail problem on Cell phones

My users complain about getting voice mails on their cell phones and
the phones did not ring at all. They have to deligently check voice
mail on a regular basis even they did not get a notification on the
cell phone. Does anyone know why this is happening? Is Cingular going
thru some network changes which cause this problem?

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› See More: Voice Mail problem on Cell phones

[email protected] wrote in news:1125686052.189606.25040
@g49g2000cwa.googlegroups.com:

> My users complain about getting voice mails on their cell phones and
> the phones did not ring at all. They have to deligently check voice
> mail on a regular basis even they did not get a notification on the
> cell phone. Does anyone know why this is happening? Is Cingular going
> thru some network changes which cause this problem?
>
>

My girlfriend and I both experienced this exact problem. There was only
one instance of this happening to either of us and that was about two weeks
ago. Yesterday we both experienced problems dialing out because of
"network busy" issues. Whether these are due to network changes is probably
doubtful.

These two items were unsual, compared to the usual dropped calls and
spotty connections that is our GSM service in S.W. FL.

If someone calls you and their isn't a cell channel available in your area
on a nearby tower, they can't pass the call to you so it goes right to voice
mail, or any other number it is set to forward to.

Same thing happens when driving. You need to have a handoff from one tower
to the next, but the next one is 100% busy, there goes the call.



--
Steve
"Rex Havoc" <RexHavoc@n+o+s+p+a+m+comcast.net> wrote in message
news:[email protected]...
> [email protected] wrote in news:1125686052.189606.25040
> @g49g2000cwa.googlegroups.com:
>
>> My users complain about getting voice mails on their cell phones and
>> the phones did not ring at all. They have to deligently check voice
>> mail on a regular basis even they did not get a notification on the
>> cell phone. Does anyone know why this is happening? Is Cingular going
>> thru some network changes which cause this problem?
>>
>>
>
> My girlfriend and I both experienced this exact problem. There was only
> one instance of this happening to either of us and that was about two
> weeks
> ago. Yesterday we both experienced problems dialing out because of
> "network busy" issues. Whether these are due to network changes is
> probably
> doubtful.
>
> These two items were unsual, compared to the usual dropped calls and
> spotty connections that is our GSM service in S.W. FL.

<[email protected]> wrote in message
news:[email protected]...
> My users complain about getting voice mails on their cell phones and
> the phones did not ring at all. They have to deligently check voice
> mail on a regular basis even they did not get a notification on the
> cell phone. Does anyone know why this is happening? Is Cingular going
> thru some network changes which cause this problem?

While in the gym, I drop my Razr into the car console among credit cards
with mag stripes, screwdriver, pocket knife, auto adapters for cell, pocket
browser, GPS, etc. That creates a cellular Pandora's box. Calls will roll to
voicemail because of no signal.

<[email protected]> wrote in message
news:[email protected]...
> My users complain about getting voice mails on their cell phones and
> the phones did not ring at all. They have to deligently check voice
> mail on a regular basis even they did not get a notification on the
> cell phone. Does anyone know why this is happening? Is Cingular going
> thru some network changes which cause this problem?
>

Actually - this problem is caused because the tower that you were connected
to previously has "forgotten" that you are still connected to it. This can
be common to people who live/work next to high usage areas like freeways.

The solution is very simple. Have your users power the phone off - wait a
minute and power back on. This reregisters the phone on the tower and calls
begin to come through again.

Cliff wrote:
> <[email protected]> wrote in message
> news:[email protected]...
>
>>My users complain about getting voice mails on their cell phones and
>>the phones did not ring at all. They have to deligently check voice
>>mail on a regular basis even they did not get a notification on the
>>cell phone. Does anyone know why this is happening? Is Cingular going
>>thru some network changes which cause this problem?
>>
>
>
> Actually - this problem is caused because the tower that you were connected
> to previously has "forgotten" that you are still connected to it. This can
> be common to people who live/work next to high usage areas like freeways.

Wouldn't this problem be mitigated by the fact that all cell phones,
from AMPS to TDMA to GSM to CDMA, periodically transmit a registration
ping to the cell site to say "I'm still here?"

It would seem more likely to me that instead of the cell site
"forgetting" about a cell phone that is homed on it, it would instead be
at capacity, and simply doesn't have another time slot available to
assign to that phone to handle yet another call.

> The solution is very simple. Have your users power the phone off - wait a
> minute and power back on. This reregisters the phone on the tower and calls
> begin to come through again.

It would seem rather cumbersome to have to do this multiple times a day
every time a cell site "forgets" about a phone, wouldn't you say?
that's what periodic re-registration is for.


--
E-mail fudged to thwart spammers.
Transpose the c's and a's in my e-mail address to reply.

"Isaiah Beard" <[email protected]> wrote in message
news:[email protected]...
> Cliff wrote:
> > <[email protected]> wrote in message
> > news:[email protected]...
> >
> >>My users complain about getting voice mails on their cell phones and
> >>the phones did not ring at all. They have to deligently check voice
> >>mail on a regular basis even they did not get a notification on the
> >>cell phone. Does anyone know why this is happening? Is Cingular going
> >>thru some network changes which cause this problem?
> >>
> >
> >
> > Actually - this problem is caused because the tower that you were
connected
> > to previously has "forgotten" that you are still connected to it. This
can
> > be common to people who live/work next to high usage areas like
freeways.
>
> Wouldn't this problem be mitigated by the fact that all cell phones,
> from AMPS to TDMA to GSM to CDMA, periodically transmit a registration
> ping to the cell site to say "I'm still here?"
>
> It would seem more likely to me that instead of the cell site
> "forgetting" about a cell phone that is homed on it, it would instead be
> at capacity, and simply doesn't have another time slot available to
> assign to that phone to handle yet another call.
>
> > The solution is very simple. Have your users power the phone off - wait
a
> > minute and power back on. This reregisters the phone on the tower and
calls
> > begin to come through again.
>
> It would seem rather cumbersome to have to do this multiple times a day
> every time a cell site "forgets" about a phone, wouldn't you say?
> that's what periodic re-registration is for.
>
>
> --
> E-mail fudged to thwart spammers.
> Transpose the c's and a's in my e-mail address to reply.

You are correct in as much as I was not explicit enough to say that when a
tower "forgets" the reason it forgets is that the tower that one is
connected to is indeed at capacity and registration is lost.

"Isaiah Beard" <[email protected]> wrote in message
news:[email protected]...
> Cliff wrote:
> > <[email protected]> wrote in message
> > news:[email protected]...
> >
> >>My users complain about getting voice mails on their cell phones and
> >>the phones did not ring at all. They have to deligently check voice
> >>mail on a regular basis even they did not get a notification on the
> >>cell phone. Does anyone know why this is happening? Is Cingular going
> >>thru some network changes which cause this problem?
> >>
> >
> >
> > Actually - this problem is caused because the tower that you were
connected
> > to previously has "forgotten" that you are still connected to it. This
can
> > be common to people who live/work next to high usage areas like
freeways.
>
> Wouldn't this problem be mitigated by the fact that all cell phones,
> from AMPS to TDMA to GSM to CDMA, periodically transmit a registration
> ping to the cell site to say "I'm still here?"
>
> It would seem more likely to me that instead of the cell site
> "forgetting" about a cell phone that is homed on it, it would instead be
> at capacity, and simply doesn't have another time slot available to
> assign to that phone to handle yet another call.
>
> > The solution is very simple. Have your users power the phone off - wait
a
> > minute and power back on. This reregisters the phone on the tower and
calls
> > begin to come through again.
>
> It would seem rather cumbersome to have to do this multiple times a day
> every time a cell site "forgets" about a phone, wouldn't you say?
> that's what periodic re-registration is for.
>
>
> --
> E-mail fudged to thwart spammers.
> Transpose the c's and a's in my e-mail address to reply.

My bad - I didn't read through the entire email. If you are in your own
home calling area and except for when you are using data - a phone will not
send out pings to the tower to maintain connection. A tower may send out a
signal to see if you are still on it - but if you have already dropped then
it would not see you.

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <[email protected]> on Mon, 19 Sep 2005 23:44:29
GMT, "Cliff" <[email protected]> wrote:

>"Isaiah Beard" <[email protected]> wrote in message
>news:[email protected]...
>> Cliff wrote:
>> > <[email protected]> wrote in message
>> > news:[email protected]...
>> >
>> >>My users complain about getting voice mails on their cell phones and
>> >>the phones did not ring at all. They have to deligently check voice
>> >>mail on a regular basis even they did not get a notification on the
>> >>cell phone. Does anyone know why this is happening? Is Cingular going
>> >>thru some network changes which cause this problem?

This is probably due to network disruption. Report the problem, and keep
reporting it until it gets fixed.

>> > Actually - this problem is caused because the tower that you were connected
>> > to previously has "forgotten" that you are still connected to it. This can
>> > be common to people who live/work next to high usage areas like freeways.

It's actually a relatively rare occurrence. GSM handset location is managed
by the Home Location Register (HLR), and the Visitor Location Register (VLR),
commonly one per MSC (Mobile services Switching Center), which can handle
multiple BSCs (Base Station Controllers), each of which can handle multiple
BTSs (Base Transceiver Stations, aka "towers"). The MSC is part of the GSM
Network Subsystem, not the GSM Base Station Subsystem.

>> Wouldn't this problem be mitigated by the fact that all cell phones,
>> from AMPS to TDMA to GSM to CDMA, periodically transmit a registration
>> ping to the cell site to say "I'm still here?"

Yes.

>> It would seem more likely to me that instead of the cell site
>> "forgetting" about a cell phone that is homed on it, it would instead be
>> at capacity, and simply doesn't have another time slot available to
>> assign to that phone to handle yet another call.

Registration isn't affected by capacity -- handsets stay registered even if a
cell is operating at capacity.

>> > The solution is very simple. Have your users power the phone off - wait a
>> > minute and power back on. This reregisters the phone on the tower and calls
>> > begin to come through again.

GSM handsets are programmed to register themselves periodically -- no manual
intervention of special command is necessary.

>> It would seem rather cumbersome to have to do this multiple times a day
>> every time a cell site "forgets" about a phone, wouldn't you say?
>> that's what periodic re-registration is for.

Correct.

>My bad - I didn't read through the entire email. If you are in your own
>home calling area and except for when you are using data - a phone will not
>send out pings to the tower to maintain connection. A tower may send out a
>signal to see if you are still on it - but if you have already dropped then
>it would not see you.

Again, GSM handsets are programmed to register themselves periodically -- no
manual intervention of special command is necessary.

For more information, see "Overview of the Global System for Mobile
Communications" at <http://ccnga.uwaterloo.ca/~jscouria/GSM/gsmreport.html>.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

Cliff wrote:
> <[email protected]> wrote in message
> news:[email protected]...
>
>>My users complain about getting voice mails on their cell phones and
>>the phones did not ring at all. They have to deligently check voice
>>mail on a regular basis even they did not get a notification on the
>>cell phone. Does anyone know why this is happening? Is Cingular going
>>thru some network changes which cause this problem?
>>
>
>
> Actually - this problem is caused because the tower that you were connected
> to previously has "forgotten" that you are still connected to it. This can
> be common to people who live/work next to high usage areas like freeways.
>
> The solution is very simple. Have your users power the phone off - wait a
> minute and power back on. This reregisters the phone on the tower and calls
> begin to come through again.
>
>

Which phone are you seeing this happen on? Maybe it is defective.

Is it possible that it is being used in a weak signal area and the calls
didn't ring through due to being out of coverage?