SIP account disable not work.
Issue generated from Tuleap's migration script. Originally submitted by: Karol Kubicek (karciko)
A detailed description of the bug. Use following fields for description field:
* Environment: Windows 10 Pro
* Reproduce steps:
- Open SIP account settings panel
- change 'Account enabled' to OFF
- confirm with 'Accept account modifications' button
* Expected result:
- SIP account in the list will be disabled
* Actual result:
- SIP account is in state 'Ready' and receive incomming call