Availability Routine 99.5% See Note 1 ≥99.5% Time To Without 4 hours 4 ≤ Restore (TTR) Dispatch With 8 hours 8 hours ≤ Dispatch Notes: Voice Service availability is calculated as the average voice service availability for the contractor’s network.
Availability Routine 99.5% ≥99.5% See Note 1 Time To Restore (TTR) Without Dispatch 4 hours ≤ 4 With Dispatch 8 hours ≤ 8 hours Notes: Voice Service availability is calculated as the average voice service availability for the contractor’s network.