DHCP Server Configuration for Phones

ISC DHCP Server: http://apetec.com/linux/CentOS-DHCP-Setup.htm

Polycom and Others: https://www.escaux.com/docs/CustomerDhcpServerConfiguration.html

VLAN Discovery Via DHCP: http://wiki.unify.com/wiki/VLAN_ID_Discovery_over_DHCP

VoIP Provisioning Over DHCP: https://netvoip.wordpress.com/2013/08/01/voip-provision-via-dhcp/

Option Name Setting
002 Time Offset (GMT-7) 0xffff9d90 for Arizona
042 NTP Servers <pbxipaddr> if PBX supports it
066 Boot Server Hostname <pbxipaddr> if PBX supports it
150 Option150 used by Cisco
160 Option160
tftp://<pbxipaddr>
used by Polycom and others

Windows

Windows DHCP Options for Phones