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The Telecom Digest for September 29, 2011
Volume 30 : Issue 245 : "text" Format
====== 30 years of TELECOM Digest -- Founded August 21, 1981 ======
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Date: Wed, 28 Sep 2011 03:39:13 -0700 (PDT)
From: Michael <michael.muderick@gmail.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: CO question
Message-ID: <f9b0e66a-410d-47be-8030-09d457bfc012@j20g2000vby.googlegroups.com>
On Sep 27, 11:23 am, Doug McIntyre <mer...@geeks.org> wrote:
> Michael <michael.muder...@gmail.com> writes:
> >My Verizon dialtone service is out. DSL works ok. When I finally
> >reached an 'agent' by repeating 'agent' in the voice prompts, I
> >explained that I had battery on the line and sidetone and I had
> >checked the NID/demarc.
> >The problem clearly was not at my home, even though they insisted they
> >would be out Thursday- five days later. FRUSTRATING.
> >Assuming I'm correct and the problem is not at my home, they said it
> >could either be in the CO, or some other device/location between my
> >home and the CO. What are they referring to? Does that serve a
> >neigborhood or a group of numbers in an exchange, i.e. 1234-1254, or
> >something like that.
> >TIA for your answer.
>
> Since DSL works and dialtone doesn't, the break is most likely
> somewhere between the splitter off the DSLAM and back into the phone
switch.
>
> When they put DSL in, your primary line gets moved off the switch MDF
> and onto the splitter panel for the DSL, and then a new pair gets run
> back to the switch MDF.
>
> The "some other device in fhe field" is the result of the telcos
> needing to put DSLAMs out in the field to get them closer to you due
> to wire line limitations of DSL signalling. These remote DSLAMs are
> all over. Ie. in my suburban area around my home, I have 3 remote
> DSLAMs within a short walking distance. You can tell what they are
> with the telco environmental boxes, with a power meter on them.
> Ie. here's some pictures of them.
>
>
http://www.dslreports.com/forum/remark,15874273
>
> (not the short squat green boxes, those are power transformers for the
> power company).
>
> The remote DSLAM serves all the customers that are downstream off the
> CO cable that is feeding that area. This could be a small number, or a
> huge number. It all depends on how things get fed.
>
> Most likely your voice line pair is lifted or open somewhere after the
> DSLAM splitter panel in the remote DSLAM RT serving your area, and VZ
> will have to dispatch out to the field to check the RT and find your
> voice line.
>
> As to it taking 5 days.. That is something else altogether. Repair
> time for service companies have been going down hill for some time now. :(
BTW, Since I am less than 1 mile from the CO, I doubt there is a DSLAM
between my home and the CO. I've never seen one. I contend the
problem was in that building, since I did have battery on the line.
mm
Date: Wed, 28 Sep 2011 03:37:13 -0700 (PDT)
From: Michael <michael.muderick@gmail.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: CO question
Message-ID: <327f1291-be29-4af1-a528-9685e0298e92@g33g2000yqc.googlegroups.com>
On Sep 27, 11:23 am, Doug McIntyre <mer...@geeks.org> wrote:
> Michael <michael.muder...@gmail.com> writes:
> >My Verizon dialtone service is out. DSL works ok. When I finally
> >reached an 'agent' by repeating 'agent' in the voice prompts, I
> >explained that I had battery on the line and sidetone and I had
> >checked the NID/demarc.
> >The problem clearly was not at my home, even though they insisted they
> >would be out Thursday- five days later. FRUSTRATING.
> >Assuming I'm correct and the problem is not at my home, they said it
> >could either be in the CO, or some other device/location between my
> >home and the CO. What are they referring to? Does that serve a
> >neigborhood or a group of numbers in an exchange, i.e. 1234-1254, or
> >something like that.
> >TIA for your answer.
>
> Since DSL works and dialtone doesn't, the break is most likely
> somewhere between the splitter off the DSLAM and back into the phone
switch.
>
> When they put DSL in, your primary line gets moved off the switch MDF
> and onto the splitter panel for the DSL, and then a new pair gets run
> back to the switch MDF.
>
> The "some other device in fhe field" is the result of the telcos
> needing to put DSLAMs out in the field to get them closer to you due
> to wire line limitations of DSL signalling. These remote DSLAMs are
> all over. Ie. in my suburban area around my home, I have 3 remote
> DSLAMs within a short walking distance. You can tell what they are
> with the telco environmental boxes, with a power meter on them.
> Ie. here's some pictures of them.
>
>
http://www.dslreports.com/forum/remark,15874273
>
> (not the short squat green boxes, those are power transformers for the
> power company).
>
> The remote DSLAM serves all the customers that are downstream off the
> CO cable that is feeding that area. This could be a small number, or a
> huge number. It all depends on how things get fed.
>
> Most likely your voice line pair is lifted or open somewhere after the
> DSLAM splitter panel in the remote DSLAM RT serving your area, and VZ
> will have to dispatch out to the field to check the RT and find your
> voice line.
>
> As to it taking 5 days.. That is something else altogether. Repair
> time for service companies have been going down hill for some time now. :(
Thanks for all the answers. Service was restored yesterday-230pm.
total outage 52 hours.
The recording that called says I will receive a credit. I intend to
ask for more than that. Problems was reported as a "cable problem".
Upside was an email from Verizon offering me a reduction in my monthly
bill from $77 to $59 and in increase in DSL speed. No negatives.
So I accepted. No answer why, if this was available, I wasn't
notified before. No retroactive fee adjustments available. After I
agreed they told me that my existing modem wouldn't support the
increased speed. So they are sending me a new modem. Hopefully
before they change the service. Stay tuned.
mm
Date: Wed, 28 Sep 2011 23:27:32 +0000 (UTC)
From: "Adam H. Kerman" <ahk@chinet.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: Where does digital phone service hand off toll-free calls?
Message-ID: <j60ah4$npc$1@news.albasani.net>
Scott Dorsey <kludge@panix.com> wrote:
>Adam H. Kerman <ahk@chinet.com> wrote:
>>If a subscriber has digital phone service, where would calls to toll-free
>>numbers be handed off? Are they handed off to the local telephone company
>>at the closest co-lo to the physical location of the digital server that
>>provides service to its subscriber? Are they handed off to the central
>>office serving the polygon of the rate center (or wire center if different)
>>based on (what the digital phone service provider thinks is the) service
>>address, which could involve back-hauling traffic? Or do digital phone
>>service networks interface directly with some long distance providers
>>offering toll free service?
>I'm not sure what you mean. Our PBX has a T-1 to the local telco, and it
>also has a T-1 to a long distance provider. We can hand it off to either
>one, as the PBX software sees fit. This is the miracle of the digital age.
If the call to the toll-free number terminates on a foreign network,
why would your long distance provider even accept the hand off in the
first place? In your case, I've got to believe it's handed off locally.
I realize I didn't specify that the digital phone service I was thinking
of was unswitched on the originating end, but I was thinking about VoIP.
Date: 28 Sep 2011 20:18:16 -0400
From: kludge@panix.com (Scott Dorsey)
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: Where does digital phone service hand off toll-free calls?
Message-ID: <j60dg8$mh4$1@panix2.panix.com>
Adam H. Kerman <ahk@chinet.com> wrote:
>
>If the call to the toll-free number terminates on a foreign network,
>why would your long distance provider even accept the hand off in the
>first place? In your case, I've got to believe it's handed off locally.
Because telcos live by one precept: never pass down an opportunity to bill
someone for something.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
Date: Wed, 28 Sep 2011 21:18:43 -0400
From: Steve Stone <n2ubp@hotmail.com>
To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org.
Subject: Re: CO question
Message-ID: <VHPgq.212568$k33.135932@en-nntp-13.dc1.easynews.com>
On 9/27/2011 8:52 AM, Michael wrote:
> My Verizon dialtone service is out. DSL works ok.
A friend of mine just went thru a similar situation.
The remains of Hurricane Irene flooded out the village central office
coable vaults.
DSL and dial tone were down for a week.
DSL was restored at the one week mark however it took twelve days for
dial tone to be restored.
I was told all the old cable in and out of the vault had to be spliced
around because the paper insulation in the original ancient cable was
soaked.
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