Ask the Expert

Is it possible for a Cisco ATA 186 to work off a Meridian 1 Opt81C PBX using H.323?

I have dual tone multi frequency (DTMF), but when I try to make a call, it goes off hook and I hear a busy signal. Is it possible that it's not translating or reaching an endpoint?

Is it possible for a Cisco ATA 186 to work off a Meridian 1 Opt81C PBX using H.323?

    Requires Free Membership to View

It seems like your topology is as follows:
H.323 device←H.323→CiscoATA_FXS←Analog→Nortel Meridian FXO

It seems that you're making a call through the Nortel Meridian, perhaps from a phone set. The Meridian FXO line goes off hook and dials into the Cisco ATA but the ATA returns a busy tone.

One basic problem could be that the Nortel DTMF level cannot break the dial tone on the ATA.

You can use a network Sniffer, such as Ethereal, to see if the ATA 186 collects all the digit information from the Nortel and sends this out properly on the Ethernet interface.

If a gatekeeper is being used in the H.323 network, one of Cisco's web pages mentions a problem to look out for.

This was first published in March 2006

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: