DNS Records

Hosted Lync 2013


If you domain is hosted with Cobweb we will automatically add the records on your domain. If not you will need to contact your current domain provider and ask them to add the following records.


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Mandatory Records


In order to receive the best experience from Cobweb Hosted Lync, the following DNS records will need to be on your domain.


SRV Record


Label: _sip._tls.YourDomain

Priority: 40

Weight: 1

Port: 443

Host/Data: access.hs20.net

CNAME (Lync Discover) Record Label: lyncdiscover.YourDomain

Data: lyncdiscover.hs20.net

CNAME (Auto Discover) Record Label: autodiscover.YourDomain

Data: autodiscover-redirect.hs20.net


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Public Federation Record


If you have signed up to Lync Federation with Cobweb you will also need to add the below record. This is not needed if you will not be used federation.


SRV Record

Label: _sipfederationtls._tcp.YourDomain

Priority: 40

Weight: 1

Port: 5061

Host/Data: access.hs20.net


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