Hi Jim,
Thanks for the reply. That fact that it's hit and miss seems wierd. Usually that means some setting is not correct on my end. Hopefully someone else knows the answer because I need to have my hands on the keyboard and not physically using a phone handset when talking. I know I could use a plugin on the phone if necessary for the headset/mic use, but that means swapping plugs frequently, something I would like to avoid.
Thanks again for the reply.