Cortelco 3690 User Manuals

Table of Contents

• Important Safety Instructions

  2
• Features Of Your Telephone

  4
• Installing Your Telephone

  6
• Unpacking Your Telephone

  6
• Modular Wall Jacks

  6
• Desk Installation

  7
• Wall Installation

  7
• Check For Dial Tone

  8
• Before Using Your Telephone

  9
• Maintenance Information

  9
• Telephone Service Problems

  10
• No Dial Tone

  10
• Dial Tone But No Ringing

  10
• Dial Tone But No Dialing

  10
• Repair of Your Telephone

  11
• The FCC Wants You To Know

  12