Online User's Guide
DCP‑B7500D / DCP‑B7520DW / DCP‑B7530DN / DCP‑B7535DW / MFC‑B7700D / MFC‑B7720DN
- Load Paper
- Paper Settings
- Recommended Print Media
- Load Documents
- Unscannable and Unprintable Areas
- Using Special Paper
- Scan Using the Scan Button on Your Brother Machine
- Scan Photos and Graphics
- Save Scanned Data to a Folder as a PDF File
- Scan to an Editable Text File (OCR)
- Scan to Email Attachment
- Scan to FTP
- Web Services for Scanning on Your Network (Windows 7, Windows 8 and Windows 10)
- Change Scan Button Settings from ControlCenter4 (Windows)
- Change Scan Button Settings from Brother iPrint&Scan (Mac)
- Configure Certificate for Signed PDF
- Disable Scanning from Your Computer
- Scan from Your Computer (Windows)
- Scan Using ControlCenter4 Home Mode (Windows)
- Scan Using ControlCenter4 Home Mode (Windows)
- Select Document Type Using ControlCenter4 Home Mode (Windows)
- Change Scan Size Using ControlCenter4 Home Mode (Windows)
- Crop a Scanned Image Using ControlCenter4 Home Mode (Windows)
- Print Scanned Data Using ControlCenter4 Home Mode (Windows)
- Scan to an Application Using ControlCenter4 Home Mode (Windows)
- Save Scanned Data to a Folder as a PDF File Using ControlCenter4 Home Mode (Windows)
- Scan Settings for ControlCenter4 Home Mode (Windows)
- Scan Using ControlCenter4 Home Mode (Windows)
- Scan Using ControlCenter4 Advanced Mode (Windows)
- Scan Photos and Graphics Using ControlCenter4 Advanced Mode (Windows)
- Save Scanned Data to a Folder as a PDF File Using ControlCenter4 Advanced Mode (Windows)
- Scan Both Sides of an ID Card Using ControlCenter4 Advanced Mode (Windows)
- Scan to Email Attachment Using ControlCenter4 Advanced Mode (Windows)
- Scan to an Editable Text File (OCR) Using ControlCenter4 Advanced Mode (Windows)
- Scan Settings for ControlCenter4 Advanced Mode (Windows)
- Scan Using Nuance™ PaperPort™ 14SE or Other Windows Applications
- Scan Using Windows Fax and Scan
- Scan Using ControlCenter4 Home Mode (Windows)
- Scan from Your Computer (Mac)
- Configure Scan Settings Using Web Based Management
- Copy a Document
- Enlarge or Reduce Copied Images
- Make N in 1 Copies Using the Page Layout Feature
- Sort Copies
- Copy an ID Card
- Copy an ID Card or Bills
- Copy on Both Sides of the Paper (2-sided Copy)
- Copy Options
- Send a Fax
- Receive a Fax
- Receive Mode Settings
- Receive Modes Overview
- Choose the Correct Receive Mode
- Use PC-Fax Receive to Transfer Received Faxes to Your Computer (Windows only)
- Set the Number of Rings Before the Machine Answers (Ring Delay)
- Set Fax Detect
- Shrink Page Size of an Oversized Incoming Fax
- Set the 2-sided Printing for Received Faxes
- Set the Fax Receive Stamp
- Receive a Fax at the End of a Telephone Conversation
- Register a Number in the Blocked List
- Receive Mode Settings
- Voice Operations and Fax Numbers
- Telephone Services and External Devices
- Fax Reports
- PC-FAX
- PC-FAX for Windows
- PC-FAX Overview (Windows)
- Configure PC-FAX (Windows)
- Configure your PC-Fax Address Book (Windows)
- Add a Member to your PC-FAX Address Book (Windows)
- Create a Group in your PC-FAX Address Book (Windows)
- Edit Member or Group Information in your PC-FAX Address Book (Windows)
- Delete a Member or Group in your PC-FAX Address Book (Windows)
- Export your PC-FAX Address Book (Windows)
- Import Information to your PC-FAX Address Book (Windows)
- Send a Fax Using PC-FAX (Windows)
- Receive Faxes on Your Computer (Windows)
- PC-FAX Overview (Windows)
- PC-FAX for Mac(Sending only)
- PC-FAX for Windows
- Supported Basic Network Features
- Network Management Software and Utilities
- Additional Methods of Configuring Your Brother Machine for a Wireless Network
- Before Configuring Your Brother Machine for a Wireless Network
- Configure Your Machine for a Wireless Network
- Configure Your Machine for a Wireless Network Using the One Push Method of Wi-Fi Protected Setup™ (WPS)
- Configure Your Machine for a Wireless Network Using the PIN Method of Wi-Fi Protected Setup™ (WPS)
- Configure Your Machine for a Wireless Network Using the Machine's Control Panel Setup Wizard
- Configure Your Machine for a Wireless Network When the SSID Is Not Broadcast
- Use Wi-Fi Direct®
- Print or Scan from Your Mobile Device Using Wi-Fi Direct
- Configure Your Wi-Fi Direct Network
- Wi-Fi Direct Network Configuration Overview
- Configure Your Wi-Fi Direct Network Using the One-Push Method
- Configure Your Wi-Fi Direct Network Using the One-Push Method of Wi-Fi Protected Setup™ (WPS)
- Configure Your Wi-Fi Direct Network Using the PIN Method
- Configure Your Wi-Fi Direct Network Using the PIN Method of Wi-Fi Protected Setup™ (WPS)
- Configure Your Wi-Fi Direct Network Manually
- Advanced Network Features
- Technical Information for Advanced Users
- Lock the Machine Settings
- Network Security Features
- Before Using Network Security Features
- Secure Function Lock 3.0
- Manage Your Network Machine Securely Using SSL/TLS
- Introduction to SSL/TLS
- Certificates and Web Based Management
- Supported Security Certificate Features
- Create and Install a Certificate
- Manage Multiple Certificates
- Manage Your Network Machine Securely Using Web Based Management
- Manage Your Network Machine Securely Using BRAdmin Professional (Windows)
- Print Documents Securely Using SSL/TLS
- Send an Email Securely
- AirPrint
- Mobile Printing for Windows
- Mopria® Print Service
- Brother iPrint&Scan for Mobile Devices
- Error and Maintenance Messages
- Document Jams
- Paper Jams
- Printing Problems
- Improve the Print Quality
- Telephone and Fax Problems
- Network Problems
- AirPrint Problems
- Other Problems
- Transfer Your Faxes or Fax Journal Report
- Machine Information
- Change Machine Settings from the Control Panel
- In the Event of Power Failure (Memory Storage)
- General Settings
- Change the Default Mode
- Set the Mode Timer
- Adjust the Machine's Volume
- Set Sleep Mode Countdown
- About Deep Sleep Mode
- Set Auto Power Off Mode
- Set the Date and Time
- Set the Time Zone
- Set Your Station ID
- Set Tone or Pulse Dialling Mode
- Reduce Toner Consumption
- Add a Prefix to Every Fax Number
- Prevent Dialling a Wrong Number (Dial Restriction)
- Reduce Printing Noise
- Change the Language on the LCD
- Print Reports
- Settings and Features Tables
- Change Machine Settings from Your Computer
Some features are not available depending on the model.
Home > Troubleshooting > Telephone and Fax Problems > Set Telephone Line Compatibility for Interference and VoIP Systems
Set Telephone Line Compatibility for Interference and VoIP Systems
Related Models:MFC‑B7700D / MFC‑B7720DN
Problems sending and receiving faxes due to possible interference on the telephone line may be solved by reducing the modem speed to minimise errors in fax transmission. If you are using a Voice over IP (VoIP) service, Brother recommends changing the compatibility to Basic (for VoIP).
VoIP is a type of phone system that uses an Internet connection, rather than a traditional phone line.
Telephone providers frequently bundle VoIP together with Internet and cable services.
- Press Menu.
- Press
or 
to display the [Initial Setup] option, and then press OK. - Press or to display the [Compatibility] option, and then press OK.
- Press or to display the [High], [Normal], or [Basic(for VoIP)] option, and then press OK. OptionDescriptionHigh
Select High to set the modem speed at 33600 bps.
NormalSelect Normal to set the modem speed at 14400 bps.
Basic(for VoIP)
Select Basic(for VoIP) to reduce the modem speed to 9600 bps and turn off Error Correction Mode (ECM). Unless interference is a recurring problem on your telephone line, you may prefer to use it only when needed.
To improve compatibility with most VoIP services, Brother recommends changing the compatibility setting to Basic(for VoIP).
- Press Stop/Exit.
- Related Information
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