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ATA 186 Polarity Revarsal Issue

I want to activate my billing machine which is connected through ATA 186 Box. I understand, to do that I need to reverse polarity. How to Reverse Polarity in this ATA 186 and what will be the parameters in the following fields :

1. CallerIdMethod : ?

2. Polarity : ? (If only Callee_connect & Callee_disconnect bits are masked)

Secondly How should I proceed with masking the bits.



Re: ATA 186 Polarity Revarsal Issue

Since there has been no response to your post, it appears to be either too complex or too rare an issue for other forum members to assist you. If you don't get a suitable response to your post, you may wish to review our resources at the online Technical Assistance Center ( or speak with a TAC engineer. You can open a TAC case online at

If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.