in admin/reseller login, accounts > edit customer > SIP devices page, all active sip devices is not displaying in sip routing type.

steps :- 

1. Login as admin/reseller.
2. go to Accounts > Customer > Edit customer.
3. in left panel, > SIP devices.
4. click on sip devices.
5. now enable all sip routing and observe all active sip devices in drop-down as per select  extension.

Actual result :- in admin/reseller login, accounts > edit customer > SIP devices page, all active sip devices is not displaying in sip routing type.

Expected result :- It should be display all active sip device of particular customer.

See videos :-