At approximately time 8:50 IVR system doesn’t work.
026553000 always have busy tone, all customer unable to contact to Contact Center.
If customer contact at 026554000. We have to coordinated with officials 0perator for diverting the customer s’ line to Call center staffs for take care them first.
At around time 9.40, IVR systems can be used.
And problem issues that occur, IT. Department will be inform again.