HP LaserJet Pro M1132s User Guide - Page 143

Use fax on a VoIP service Voice over internet protocol (VoIP) services are often not compatible with fax machines unless the provider explicitly states that it supports fax over IP services. If the product experiences problems getting a fax to work on a VoIP network, verify that all cables and settings are correct. Decreasing the fax-speed setting might allow the product to send a fax over a VoIP network. If faxing problems continue, contact the VoIP provider. Fax memory Fax memory is retained when there is a loss of power The flash memory protects against data loss when a power failure occurs. Other fax devices store fax pages in either normal RAM or short-term RAM. Normal RAM immediately loses data when power is lost, while short-term RAM loses data about 60 minutes after a power failure occurs. Flash memory can maintain its data for years without power applied. Send a fax Fax from the flatbed scanner 1. Place the document face-down on the scanner glass. 2. Press the Setup button. 3. Select the Phone Book menu, and then press the OK button. 4. From the list, select the phone book entry. If no entry exists, use the keypad on the control panel to dial the number. 5. On the control panel, press the Send Fax button. The product starts the fax job. ENWW Use fax 129