For more Skype for Business help visit: Please This will help others find answers to similar problems. Note: Please remember to `Mark as Answered` a post that answers your question and/or `Vote as Helpful` posts that have helped you. To their SIP federated partner configurations where they can define server FQDN and port. If you choose not to, or prevented from doing so the only way you will get federation in most cases would be to ask the federating partner to add your custom federation settings
However, I will not be able to establish a connection to that portīecause my own firewall policy does not permit this.įor this reason, I would highly recommend using the proper federation port. I will be able to discover your SRV record and determine federation should happen on Port e.g 8000. I allow only 443, 53, 5061, 3478 and 50K outbound to the internet from my edge servers. For instance assume i want to federate with So inbound federation to you may fail because you are using non-standard ports. However, an important point is that most people deploy outbound firewall rules to specific destination ports from their edge servers. Just make sure the SRV record for sipfederationtls._ is set to the port that you have chosen. You set this within topology builder when defining your edge setup.
You can use any port, as long as it doesn't conflict with others. Outbound though you will need to allow 5061 because thats the way most other federate. Yes you can use custom ports if you want for federation, although not recommended.
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