Contact Collabra Networks Sales and Support

Collabra Main Phone (415) 326-3795

Collabra Fax (707) 978-7840

Microsoft Office 365 US Technical support hours:
English: 24 hours a day, 7 days a week.

Administrators Only

Microsoft Phone number:
1 800 865 9408

Microsoft Billing support hours:
English: Monday through Friday, 9 AM-5 PM

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