| Operational Support System (OSS) | Hours of Availability (Eastern Time) |
|---|---|
| Virtual Front Office (VFO) Modules: Access (ASR), Local (LSR), TA (TA) | Sunday 10:00 to Wednesday 22:00 Thursday 04:00 to Saturday 22:00 |
| Electronic Bonding (EDI, UOM, tML) | Sunday 10:00 to Wednesday 22:00 Thursday 04:00 to Saturday 22:00 |
| Frontier-MasterStream Portal | Monday through Friday 06:00 to 24:00 Saturday 15:00 to Sunday 24:00 |
| Frontier-Connectbase Portal | Monday through Friday 06:00 to 24:00 Saturday 15:00 to Sunday 24:00 |
| Customer Wholesale Portal (Reports/Performance Measures) | Sunday 10:00 to Wednesday 22:00 Thursday 04:00 to Saturday 22:00 |
System Availability exceptions are published on the System Availability Exceptions page which is available from the Notifications and News menu on the left.
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