I am working with some Polycom IP600's and for outgoing calls from the phones, the presence features work fine. I am utilizing the 100,hint,SIP/100 for these calls. The problem that I am seeing is that any inbound calls that originate from a IVR in which the extension is dialed, does not show the exension busy on the other phone. Has anyone seen this before? Does anyone know of a workaround? Thanks, Scott BTW: I am aware of the presence bug with the IP Phones, and this is while the phones are actually monitoring.