Network Config to Support the Lync Phones

When the Lync VoIP phones (Polycom CX600) are connected to the network, they rely on a few DHCP options to “hop” into our voice network.

Manually set the following options in your VOIP Scope:

  • DHCP Option 044 WINS/NBNS to a blank value
  • DHCP Option 015 value to losrios.edu
  • DHCP Option 042 IP Address value to 165.196.24.125

Run the following commands on your DHCP server which will affect your global DHCP scope.

Open your command prompt and input the following:

netsh <hit enter>

dhcp <hit enter>

Copy and paste the following:

server delete optionvalue 120
server delete optiondef 120
server delete class MSUCClient
server add optiondef 120 UCSipServer Binary 0 comment=”Sip Server Fqdn”
server set optionvalue 120 Binary 000D6C726363642D6C796E63646972056C72636364026164076C6F7372696F730365647500
server add class MSUCClient “UC Vendor Class Id” “MS-UC-Client” 1
server add optiondef 1 UCIdentifier Binary 0 Vendor=MSUCClient comment=”UC Identifier”
server set optionvalue 1 Binary vendor=MSUCClient 4D532D55432D436C69656E74
server add optiondef 2 URLScheme Binary 0 Vendor=MSUCClient comment=”URL Scheme”
server set optionvalue 2 Binary vendor=MSUCClient 6874747073
server add optiondef 3 WebServerFqdn Binary 0 Vendor=MSUCClient comment=”Web Server Fqdn”
server set optionvalue 3 Binary vendor=MSUCClient 6C726363642D6C796E636469722E6C726363642E61642E6C6F7372696F732E656475
server add optiondef 4 WebServerPort Binary 0 Vendor=MSUCClient comment=”Web Server Port”
server set optionvalue 4 Binary vendor=MSUCClient 343433
server add optiondef 5 CertProvRelPath Binary 0 Vendor=MSUCClient comment=”Cert Prov Relative Path”
server set optionvalue 5 Binary vendor=MSUCClient 2F4365727450726F762F4365727450726F766973696F6E696E67536572766963652E737663

This entry was posted on  by Vitaliy Taryanik.