Broadband provider
ISP/package: UniFi VIP 10
Location: Shah Alam
Have you called your ISP's helpline?: Not able to call 100

Personal equipment
Modem: HUAWEI HG850a
Router: Asus RT-AC1200HP
Firewall used: Router Default
Dect Phone: Motorola C401A Digital Cordless Phone

Problem details
First occurence of problem: One month ago
Problem frequency: Few times a day
Problem description: The modem will hang when turn on the dial tone of the cordless phone. When turn off the dial tone, the modem will resume and reconnect.

It used to be happened few times a week, now is getting worse and happening few times a day. I can't even make any call in the whole Sunday (1st Nov 2015) evening.

Any expertise advices and troubleshooting are appreciated.

Any resolution suggested?

Have resolved the issue by getting the new modem replaced FOC by TM.

According to the technician, sometimes such symptom is due to the adapter failure.

In summary, replaced with new modem and managed to get bill rebate of RM70++ for the outrage period.

It's alright.

Lesson learnt and my modem life has been extended to another few years running 24 X 7.