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Skype for business CCE multiple SIP Domain Certificate Cals

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Hi All,

If client have 4 Domains for a O365 tenant, can CCE deploy to two SIP doamin?

Or CCE need deploy all 4 domains ?

 

I'm concerning the Certificate SANs numbers for 2 or 4 domains.

 

THanks.

5 Replies

CCE can be deployed uisng only the specific sip domains with users you want to provide on-premises PSTN to.  If you get a Multi-Domain SSL cert from Digicert the Base price includes 4 FQDNs. Additional names are only $49.00USD each (https://www.digicert.com/order/order-1.php).

Best Response
Solution

Assumed that:

- you have 4 active domain names
- users are associated with respective domains. 

(if users are using all respective 4 domain names, YES, you need 4 domains to be associated with CCE)
- A single PSTN Site ( simply put a single location/office) 

 

Example domains you have;

domain-1.com

domain-2.com

domain-3.com

domain-4.com 

 

In this case, your public SSL certificate will look like as follow;

 

Common Name (Subject Name) = accessedgepoolname.domain-1.com. 
SANs = acessedgepoolname.domain-1.com,sip.domain-1.com,sip.domain-2.com, sip.domain-3.com, sip.domain-4.com.

 

The type of certificate you need is "Multi-Domain (SAN) Certificate" , you may have a look at https://www.digicert.com/multi-domain-ssl/

 

If user are use 2 SIP domains  and another domains are  for exchange online only. 

domain-3 and domain-4 didn't have Sfb online user.

They can buy  domain-1.com and domain-2.com for CCE only?

 

Thanks.

Yes, technically right.

 

However, from cost effectiveness point of view, since you would have to acquire multi-domains public SSL certificate, you may as well include all 4 domains altogether from the beginning. 

 

If you went ahead with only two domains, in future if you need to enable CCE PSTN calling for 2 other remaining domains, you will have to acquire the certificate again on top of redeploying entire CCE. I am sure you don't want to do that.   

 

I would recomend you get a public SSL certificate for all 4 domains from the begining and you don't have to worry again.