The only supported clients for response groups are: Lync 2013
Lync 2010 Attendant
Office Communications Server 2007 R2 Attendant Lync Phone Edition
We would like to use phones such as a Wifi phone or a CX600 phone, or possible a mobile phone with the Lync client. All of these are not supported scenarios.
support standards based SIP phones without the need for 3rd parting software (smartsip) or gateway.
I would presume these phone would get limited lync functionality: basic presence like on a call and available, and some other limitations.
Enable-CsUser has -DomainController, as do Get/Set-CsCommonAreaPhone. Being certain which domain controller a Common Area Phone is created on would enhance provisioning performance, enabling policies to be granted right after object creation.
This affects large environments with multiple DCs in far-flung locations.
This discrepancy is still present in Skype for Business Server.