Hello.

I just setup a conference phone and connected the line to the COMBO card on the S-sport for the analog extension( not the D-port for Digital extensions)

The phone is able to make call other phones in the office and make outside calls as well however the dial tone sound very strange compared to the dial tone that you are use to hearing in the digital stations and in general use.

It sound higher pitch and strange.

Is there an option to change that or is this normal for the OS7200 ?

I also have an IDCS 100 with analog lines and they don't sound like that at all. They sound like a normal dial tone on the IDCS 100, IDCS 500 but on this OS7200 it has a very strange dialtone sound.

Please advise.

The analog port probably has a voice message or the message light has been set by another extension.

Delete the voicemail box for it to clear the messages.

To clear the message light, you need to use the feature code to call back the station that set the light. Lift handset dial 42 + extension number of that analog port. It should clear all message notifications set on the port.