Provisioning issue with Fanvil x1sp with failover 3cx deployment

[ahmedalferjany]

Dears
Hopping you are doing well.
Need your support ASAP please.
I'm facing issue with Fanvil IP phones X1SP provisioning with using the follwing command in DHCP pool: #option 66 http://XXXX.sc:5000/provisioning/i1mioelg6t

Issue details: When the failover happen the IP phones couldn’t register with the standby automatedly, I should remove from network and plug again to register with standby.
Your fast response will be highly appreciated.

 

[JohnS_3CX]

Did you set your TTL to 60? The phones can actually take some time to realize that the server IP is down and perform a DNS lookup before finding the standby server.

If you want it to be faster than that, I think your only solution is to script your phones network switch to take the ports down and up in order to force the phones to do a lookup sooner.

 

[ahmedalferjany]

thank

Did you set your TTL to 60? The phones can actually take some time to realize that the server IP is down and perform a DNS lookup before finding the standby server.

If you want it to be faster than that, I think your only solution is to script your phones network switch to take the ports down and up in order to force the phones to do a lookup sooner.

Thank you for your response.
But I don't have DNS in my voip network. And fqdn created by 3cx during the installation as on prime deployment.
Only I did static nat in firewall from WAN to Lan and Lan to any.
Issue details: When the failover happen the IP phones couldn’t register with the standby automatedly, I should remove from network and plug again to register with standby.

 

[JohnS_3CX]

What type of failover are you using, failover from an on-premise host to a cloud host?

 

[ahmedalferjany]

What type of failover are you using, failover from an on-premise host to a cloud host?

our deployment is on prime.
Active VM, standby VM and IP phones in the same LAN and subnet.