@Behzad Najafizad ,
Question 1- how user in public zone connect by public domain (domain.com) and login by local username and password?
External user sign-in process is as below:
- Client discovers Edge Server:
lyncdiscoverinternal.<sip-domain>
lyncdiscover.<sip-domain>
_sipinternaltls._tcp.<sip-domain>
_sipinternal._tcp.<sip-domain>
_sip._tls.<sip-domain>
sipinternal.<sip-domain>
sip.<sip-domain>
sipexternal.<sip-domain>
2.Client connects to Edge Server.
- Edge Server proxies connection to Director.
- Director authenticates user and proxy connection to user’s home pool.
Question 2- do you need create additional sip domain in local skype or edge server?
No. It only needs to deploy Edge server properly. For more details, please refer to this article
Question 3- certificate for local and public domain how create by one sip ?
About certificate, please refer to this link.
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