Call Disconnects on Yealink T26P

[ykpasupulati]

Dear Support,

Here is the copy of the firmware entry for the upgrade. Phone doesn't pick up the firmware.

y000000000004.cfg excerpts

[ firmware ]
path = /tmp/download.cfg
server_type = ftp
server_ip = 172.20.xx.1
server_port = 21
login_name = ftpxxxx
login_pswd = XXXXXXXXXXX
http_url = ftp://ftpxxxx:XXXXXXXXXXX@172.27.xx.1/
firmware_name = 6.70.0.130.rom

Do I need to change any details? I have even tried with just tftp and still doesn't pickup the latest firmware.

TFTP works for auto provisioning but doesn't work for firmware update.

Can you please help me fix this issue?

Regards,
Yogi