Yealink 48G Phone Auto Provisioning with Elastix

[Flora_Yealink]

Hi Mallesh,
So you mean you have configured the auto provisioning URL in the option 66 but the phone still can't do auto provisioning from tftp server?
in the option 66 please just add the ip address of your tftp server , for example you tftp server's ip adress is 10.2.1.17, the value of option 66 should be just 10.2.1.17 don't add the tftp:// with it .

in this case, when the phone boot up , it will obtain the tftp server's IP adress from DHCP option 66 and then try to do auto provisioning from the tftp server.

please test and let me know if any question .
If it still can't work, please share us the pcap trace, config.bin file and level 6 syslog that I can check .
You can refer to below link for how to catch these information .
http://forum.yealink.com/forum/showthread.php?tid=1319
Best Regards!
Flora