- Joined
- Dec 9, 2016
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Hi all,
New install for a client moving from VoIP.ms. I assumed the VVX401's would work in a remote scenario, and I see with 15.5 build 5, that may be true, but I'm struggling.
I assumed (again), that 'SBC' simply meant the phones could tunnel back to the 3CX at my data centre, but I believe SBC requires a local device that proxies the connection (and I've banged my head against a wall for a few hours today trying to get it to work).
So I just set up a custom domain with SRV and A records, and enabled the 'Allow calls from/to external SIP URIs" with my custom domain, but the 'Direct SIP (STUN - Remote)' options does not appear in the provisioning options when I add the phone.
Argh.
Can someone kindly give me some guidance? Are Polycom VVX phones useless outside of a LAN unless you have an SBC at the remote site?
Thanks much!
David
New install for a client moving from VoIP.ms. I assumed the VVX401's would work in a remote scenario, and I see with 15.5 build 5, that may be true, but I'm struggling.
I assumed (again), that 'SBC' simply meant the phones could tunnel back to the 3CX at my data centre, but I believe SBC requires a local device that proxies the connection (and I've banged my head against a wall for a few hours today trying to get it to work).
So I just set up a custom domain with SRV and A records, and enabled the 'Allow calls from/to external SIP URIs" with my custom domain, but the 'Direct SIP (STUN - Remote)' options does not appear in the provisioning options when I add the phone.
Argh.
Can someone kindly give me some guidance? Are Polycom VVX phones useless outside of a LAN unless you have an SBC at the remote site?
Thanks much!
David