Create and Verify DNS SRV and A Records for Client Automatic Client Sign-in
Posted by Chad McGreanor on November 25, 2008
You must create DNS SRV records in your internal DNS for every SIP domain. The procedure assumes that your internal DNS has zones for your SIP user domains.
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To create a DNS SRV record
1. On the DNS server, click Start, click Control Panel, click Administrative Tools, and then click DNS.
2. In the console tree for your SIP domain, expand Forward Lookup Zones, and then right-click the SIP domain in which your Office Communications Server will be installed.
3. Click Other New Records.
4. In Select a resource record type, click Service Location (SRV), and then click Create Record.
5. Click Service, and then type _sipinternaltls.
6. Click Protocol, and then type _tcp.
7. Click Port Number, and then type 5061.
8. Click Host offering this service, and then type the FQDN of the pool.
9. Click OK.
10. Click Done.
