Redundant SIP with the same DID

[wcoggins]

I have searched through the forums and not seen a definite answer to this question.
Our VOIP Provider has redundant ip's that we can connect to for the same DID. A call to the DID 111 222 3333 can come into the 3cx from xxx.itel.com OR yyy.itel.com. This is their method of load balancing and fail-over.
I see that most of the major, world class providers use this topology.

Can I put both ip's (or FQDN) into the "SIP server hostname or IP" field using comma separated values?
[xxx.itel.com,yyy.itel.com]

Does anyone know if the 3cx system simply authenticates the first one or both?
Is there a better way to enter this into the VOIP Providers?

Thank you for your help

 

[Sopock]

Now it is also broken in Elastix?
https://www.3cx.com/community/threads/second-sip-trunk-with-same-did.22542/

We experienced big problems when setting up our provider's backup trunk IPs in 3CX. Our provider gives us multiple IPs to peer with, for origination & termination. 3CX does not inherently handle this very well.