atcomsystems.ca/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems real interesting service call

ANA is automatic number anouncement. Most of your carriers use it. When you hear "I see your calling from XXX-XXX-XXXX that's ANA.

Ahh I got it now, thanks for the clarification Bill. So ANA is essentially an automated service that uses ANI to read back your telephone number. Around here I've always seen it labelled ANAC but I suppose that 'C' just means circuit.

ANAC is what you dial into to get the scoop direct from the office switch, most lecs won't give you that number anymore. ANA basically see's the CID and repeats it back to you. If thats not correct I'm sure someone will correct me.

ANA is the announcement that occurs when you dial the code. It can be 958, 9580, or some other set of digits. It is a function of the serving CO.

It has nothing to do with CID. CID is FSK that is sent towards the called party during the silent interval between the first two rings by the completing CO.

The phonenut was trying to identify one of two lines by observing whether or not it had a custom calling feature. With CID, the easiest and quickest way to ID a line, if you don't know the ANA code, is to call your cell phone from the suspect line.

Then I agree with hacky. I call that the ANAC. I thought you were talking about the call announcement almost all LEC's and LD carriers use, which is based on the incoming CID.

EDIT: to add all the 958 CO codes are long gone around here and other areas I've worked in. It's now either an office code other than 958 or a toll free number that needs a password. Some of the milliwatts and quiet terms remain but that's about it.

There's a 1K test tone number that still works out of the CO near my house.

The 958 code still works here in NJ for Verizon CO's. Also the old automatic ringback code works as well (I'm not sure what it is officially called.)

When I was 13 a NJ Bell tech came to my parent's house to repair the static on their line (water in the splice boot.) The guy let me tag along and watch him, and he showed me the automatic ringback number that the techs used. From my parent's exchange you would dial 551 Then you would "flash" the line and hear a steady tone. Once you got the tone you would hang up, and a few seconds later the CO would ring you back. He told me that the exchange code would vary from 550 to 554 depending on the exchange you were calling from. I never found out how or why, but this works for my exchange using 553. Both of these things have proven to be very useful over the years.


Lou

Here in Brooklyn the ringback code was "660 6".


Sam

NOT PUBLIC INFORMATION!

Come on, guys!

These are obsolete codes, for the most part. You can go back and delete the references in my posts, if you want to.