Unable to provision Snom 710

[bobmanuk]

Good Morning All,

I have an office with about 10 Snom 710 phones and we will be eventually be moving them all to 3CX.

We have v15.5 in Azure with PBXExpress and a SBC on the lan.

I have a Yealink T48S that auto provisioned with no problems, but this is a loan phone whilst i demo 3cx to a customer of ours. We wont have it for very long.

I am trying to provision the 710's but im struggling somewhat.

I have factory reset one handset and updated the firmware to the latest one provided by 3CX

the PBX shows the phone IP via SBC IP, i click the phone and assign an extension.

the provisioning method is 3CX SBC (Remote)

Mac address is populated and matches the device.

IP of SBC is correct.

nothing else appears out of place,
Disallow use of extension outside the LAN and Block Remote Tunnel Connections are unticked, because i was also trying to use this as a stun device, which also doesnt work after following the guide.

I tried to put the logins into the phones web interface and manually reboot the phone. the phone just sits at not registered.

I dont see any entries in the event log when trying to provision via SBC, no confirmations that it completed successfully, and no failure messages either, like you would get with STUN.

Can anyone offer any suggestions to try?

Thanks.

 

[JohnS_3CX]

Hi,

If you haven't already, please study this guide first: https://www.3cx.com/sip-phones/snom-710-720-760/

Take another Snom phone which you have not yet used via STUN before, reset/upgrade to the firmware included in the guide, and try to now provision this phone via SBC on a new extension.

If it works, then the previous phone was probably still trying to speak with the Snom RPS and will not provision via SBC until the RPS entry expires (2 weeks).

 

[bobmanuk]

Thanks, I have read the guide top to bottom and followed every step. But you are right, maybe the 2 week thing is the issue. However I would have at least expected the pbx to have a message that it succeeded/failed in provisioning the device.

Regardless, i managed to find the required settings needed to get the phones working manually. Just in case I can’t actually provision them automatically.

Thanks

 

[JohnS_3CX]

The PBX acts like an FTP server that "gives" the configuration file to your phone, so it has no way of knowing if the phone applied the file successfully - it's a one way deal. The only thing you can do is wait to see if the device tries to register at which point you will have confirmation that it was provisioned.

Note that the PBX does inform you for STUN that the request was delivered to the Snom RPS, but that still doesn't tell you that the device has provisioned unless it registers or you log on to it manually to confirm it has filled all the expected fields.