30 Years of the Digest ... founded August 21, 1981
The Telecom Digest for May 28, 2012
====== 30 years of TELECOM Digest -- Founded August 21, 1981 ======
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Date: Sat, 26 May 2012 19:49:00 -0400 From: Monty Solomon <email@example.com> To: firstname.lastname@example.org. Subject: APPLE-SA-2012-05-07-1 iOS 5.1.1 Software Update Message-ID: <email@example.com> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 APPLE-SA-2012-05-07-1 iOS 5.1.1 Software Update iOS 5.1.1 Software Update is now available and addresses the following: Safari Available for: iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation) and later, iPad, iPad 2 Impact: A maliciously crafted website may be able to spoof the address in the location bar Description: A URL spoofing issue existed in Safari. This could be used in a malicious web site to direct the user to a spoofed site that visually appeared to be a legitimate domain. This issue is addressed through improved URL handling. This issue does not affect OS X systems. CVE-ID CVE-2012-0674 : David Vieira-Kurz of MajorSecurity (majorsecurity.net) WebKit Available for: iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation) and later, iPad, iPad 2 Impact: Visiting a maliciously crafted website may lead to a cross- site scripting attack Description: Multiple cross-site scripting issues existed in WebKit. CVE-ID CVE-2011-3046 : Sergey Glazunov working with Google's Pwnium contest CVE-2011-3056 : Sergey Glazunov WebKit Available for: iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation) and later, iPad, iPad 2 Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution Description: A memory corruption issue existed in WebKit. CVE-ID CVE-2012-0672 : Adam Barth and Abhishek Arya of the Google Chrome Security Team Installation note: This update is only available through iTunes, and will not appear in your computer's Software Update application, or in the Apple Downloads site. Make sure you have an Internet connection and have installed the latest version of iTunes from www.apple.com/itunes/ iTunes will automatically check Apple's update server on its weekly schedule. When an update is detected, it will download it. When the iPhone, iPod touch or iPad is docked, iTunes will present the user with the option to install the update. We recommend applying the update immediately if possible. Selecting Don't Install will present the option the next time you connect your iPhone, iPod touch, or iPad. The automatic update process may take up to a week depending on the day that iTunes checks for updates. You may manually obtain the update via the Check for Updates button within iTunes. After doing this, the update can be applied when your iPhone, iPod touch, or iPad is docked to your computer. To check that the iPhone, iPod touch, or iPad has been updated: * Navigate to Settings * Select General * Select About. The version after applying this update will be "5.1.1". Information will also be posted to the Apple Security Updates web site: http://support.apple.com/kb/HT1222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.16 (Darwin) iQEcBAEBAgAGBQJPpBcyAAoJEGnF2JsdZQeexJYH/0aYO0MULFXYARidSV22JdjG a1+yXKn8Rv2vv+8yStgKK2mWu18hvYWQ+whtvCzs1OefiVsq1nOvdCL1G62ybcYv O9BiHEDsuu+On2nAPiglu+luokByKLlZcIaM1Qa3pXHkiI8jlH7y7XuuoFsVt1Vc 284JgvV/sHnvesne2GsNyoRBJjfkliqXCgb1zmQWO9xX7HEJCaMNlc5Bwdonm26q 3OEKr2UQxvmWCbnCroiQ5KmEM+gLJSfLLOymow9xa4gM8aM87BXGWNMEKVs8LRLm dHngmEmzEa/Fx9PnR7rqjTCAMS8hR7aFcCYNTWjfR+keRXx7OHhCm88MfndryS8= =qhqL -----END PGP SIGNATURE-----
Date: Sat, 26 May 2012 21:43:59 -0700 From: John David Galt <firstname.lastname@example.org> To: email@example.com. Subject: Re: From Comcast, TV as data center Message-ID: <firstname.lastname@example.org> The Globe wrote: > A new service from cable television giant Comcast Corp. could turn > the home TV into a home data center, tracking everything from > business appointments to household security. We already have this. It's called a PC with Internet service. Many viewers, including myself, have already taken to using it as a complete substitute for "television" in all its other forms. The only remaining step is for the remaining content providers to figure out that they have more to gain by moving there than by continuing to pretend that their use of old equipment protects them against copyright infringement. (Or that their vertical semi-integration with cable and satellite TV companies can continue to keep them afloat.) The music and talk shows I care most about, including Glenn Beck, have already made the move. Most of the rest of us have nothing to lose by following them.
Date: Sat, 26 May 2012 22:43:12 -0400 From: tlvp <mPiOsUcB.EtLlLvEp@att.net> To: email@example.com. Subject: Re: Q.: Message waiting light ... how? Message-ID: <firstname.lastname@example.org> On 26 May 2012 17:06:48 -0000, John Levine wrote: >>So, my question is: what sorts of signal on the line might be causing that >>lamp to light? or to extinguish? > > Look up the ADSI standard. There are specific tone signals to turn > the message waiting light on and off. > > R's, > John Thanks, John. Actually, ADSI is far too undisambiguated for Google to be much help. But [ ADSI Message Waiting Signal Standard ] brought up a Wikipedia article that may well have answered everything I was wondering: : Some [stand-alone Caller-ID] units will also display the text "MESSAGE WAITING" : (similar to ADSI-compliant telephones). These units do not use visual FSK to activate : their red LEDs, but instead, they briefly "pick-up" the line at certain intervals (normally, : within two minutes of a new call) to check for a "stuttered" dial tone. The presence : of a stutter dial tone will activate a red LED; while absence will deactivate it. ... both what might cause it to go flashing when there's no voicemail service for it to be reporting about, and why 5-10 seconds worth of fresh dial-tone may bring that flashing to a halt. http://en.wikipedia.org/wiki/Message-waiting_indicator Cheers, and thanks again, -- tlvp -- Avant de repondre, jeter la poubelle, SVP.
Date: Sun, 27 May 2012 04:34:34 +0000 (UTC) From: "Adam H. Kerman" <email@example.com> To: firstname.lastname@example.org. Subject: Feature Group B CICs and CACs prior to expansion Message-ID: <email@example.com> http://www.atis.org/inc/Docs/finaldocs/CIC-Assignment-Guidelines-Final-Document-05-25-12.doc I noticed this paper, which includes a short history of Carrier Identification Code assignments. CICs identify a carrier. The Carrier Access Code, the actual dialing sequence used by the calling party, incorporates the CIC. Prior to April, 1993, CICs were assigned for Fg.B and Fg.D access from the same pool. Fg.B CIC codes expanded to 4 digits at that time. I was trying to remember the Fg.B CAC prior to expansion. I thought it was 950-0XXX where X is any digit 0-9. With expansion, 0 was prepended to CIC. However, checking the NANPA list, there are also 1XXX CICs, suggesting that some three-digit CICs had 1 prepended. Prior to expansion, was the CAC also 950-1XXX for certain carriers? I found a note that 9000 possible CICs can be assigned in Fg.B because switches cannot distinguish between 950-0XXX and 950-1XXX. Can someone explain the conflict? With Fg.B CIC expansion, 5XXX range was opened. 6XXX range will be opened next, but this range hasn't yet been opened. Then it goes to 2XXX. In April, 1995, Fg.D codes were expanded to four digits. "0" was prepended to existing codes, and the CAC changed from 10XXX to 101XXXX. I found a note that Fg.B CICs as 4 digits could be reserved for Fg.D assignment after code expansion. CICs were first assigned in 1981. They were two digits. Were these used for anything more than intercarrier billing and settlements? Were there CACs at the time from any exchange? CICs expanded to three digits in 1983. Was "0" prepended to existing CICs? Where and when were CACs first dialable as either Fg.B or Fg.D? How many 950 prefixes were assigned before its use as Fg.B CAC?
Date: Sun, 27 May 2012 09:01:33 -0700 (PDT) From: "John C. Fowler" <firstname.lastname@example.org> To: email@example.com. Subject: Re: Q.: Message waiting light ... how? Message-ID: <1338134493.9236.YahooMailClassic@web160304.mail.bf1.yahoo.com> Replying to Message-ID: <firstname.lastname@example.org> tlvp wrote: > For about a year, now, sporadically, our little ILEC-supplied, stand-alone, > Caller-ID box has taken to flashing an amber "Message Waiting" light after > an unanswered inbound call has stopped ringing. ... > We have no ILEC-supplied voice mail, so there's no actual message awaiting > us. And going off-hook long enough to hear 5-10 seconds worth of dial tone > is enough to make that "Message Waiting" lamp turn off. If this is a regular POTS line from the phone company, chances are the box is just going off hook and listening for a stutter dial tone, to indicate a message waiting, any time after the phone has been used. I have multiple phones with line-in-use indicators, and I see this happening all the time, where the line-in-use lights up a few seconds after I hang up, then goes out again after a couple of seconds. I figure it's one of the phones that has a "Message Waiting" light on it, checking to see if anyone called while I was on the phone. If the dial tone is impure or there is some sort of noise going on during the check, your Caller-ID box might be fooled into thinking it's a voice mail indication. When you go off hook yourself, it assumes you've heard the stutter dial tone, so it can turn its light out now. Of course, digital lines have a completely different way of doing this. John C. Fowler, email@example.com
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