Comments on: Comcast’s Caller ID

By: Sheila

Sheila — Sun, 11 Mar 2012 22:51:18 +0000

Is there a way I can see missed calls?

By: grimmwerks

grimmwerks — Fri, 24 Feb 2012 00:09:23 +0000

Hey – found this by doing some google searching — I’m wondering if theres a way I can PUSH messages to my dvr – ie ‘new email from’ etc — from my computer via cmdline? Really interested in this…

By: Melissa Osika

Melissa Osika — Mon, 14 Nov 2011 21:20:46 +0000

I am having the same problem as Jim. Got a new Comcast DVR cable box and have lost my caller ID. Comcast has no idea what is wrong. I get the same excuses about powering down the box and waiting 72 hours. Nothing has worked. Grrrr.

By: Jim

Jim — Wed, 15 Jun 2011 22:11:25 +0000

Great site! Thanks for it. I’m still looking for information about how the caller ID is supposed to get to the TV. Mine hasn’t worked for a year. Many interactions with Comcast – all ending up with the “wait 24 (48 or 72) hours” and it will be OK. Had a tech out twice to verify everything is hunky dory. Still no Caller ID on the TV. Maybe if I could find out how it is supposed to work, I could figure something out. Again, love your site.

Jim

By: Annamarie Ediger

Annamarie Ediger — Wed, 30 Mar 2011 13:53:48 +0000

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By: TrueJournals

TrueJournals — Thu, 14 Oct 2010 19:48:26 +0000

Sorry about the delay with this. I’ve been busy being a college student

Just made a new blog post! Hope it works for everyone

By: Henry

Henry — Thu, 14 Oct 2010 18:49:33 +0000

I have successfully gotten my code to decrypt the XMPP messages from comcast. With the help from Bobby (Truejournals) we have connected to Comcast’s XMPP server and decoded the XML message. He plans on releasing our code but I haven’t heard from him. I plan on releasing the code in a couple days if he doesn’t.

By: Andy

Andy — Sun, 10 Oct 2010 12:44:06 +0000

Ross — are you trying to replace the air app or simply decode/descrypt. I know I would be satisfied taking the CID info directly from the air app/xmpp network payload.

Have you gotten any farther?

By: Ross Presser

Ross Presser — Fri, 01 Oct 2010 07:24:59 +0000

OK, I’ve discovered how to view the debug log in Pidgin, and yes, Pidgin is authenticating fine to the XMPP server. It’s expecting more info from the server, perhaps a buddy list, and that’s why it doesn’t show that the connection is finished; but it is connected, and when the phone rings I do see the HEADLINE packet coming in. Unfortunately Pidgin ignores HEADLINEs … well, I would have to write a plugin anyway to do the decryption, so it’s moot. I guess I’ll need some other XMPP client or client library.

By: Ross Presser

Ross Presser — Thu, 30 Sep 2010 15:50:42 +0000

I’ve started working on decoding it myself. Comcast provides a Caller ID desktop app for your computer, which is written as an Adobe AIR app. That can be dissaembled into Actionscript code using any of various Flash decompilers; the interesting files are:

com.hurlant.machenmusik.CM_IM_Decrypt.as
xmpp.CInfoMessage.as
xmpp.Connection.as

I can email you these files if you wish. They’re using AES256 as an encryption method; the key is generated from this function:

internal static function GenerateKeyForUser(arg1:String):flash.utils.ByteArray
{
return GenerateKey(com.hurlant.util.Hex.toArray(com.hurlant.util.Hex.fromString(theSalt != null ? theSalt : “7R]c\’1z }

I found these things out, but I'm having trouble connecting Pidgin to the comcast XMPP server. What XMPP client were you using, TrueJournals? and anyone know if Pidgin is capable of receiving the XMPP headline?