The VoIP telephone system generates different ringer and dial tones, depending on call conditions.

There are two types of dial tone:

• Internal Dial Tone – A continuous, higher-pitched tone
• External (Outside) Dial Tone – A continuous, lower-pitched tone

There are four types of ringers – all are answered the same way:

• One Ring – Normal incoming call or system reminder. If Visual Call Waiting Ring is enabled, one ring is used for calls originating within your area code.
• Two Rings – If Visual Call Waiting Ring is enabled, two rings are used for calls originating outside your area code.
• Distinctive Rings – A different ring tone is provided for up to three additional Direct Inward Dial (DID) numbers assigned to your telephone by the system administrator. These numbers do not appear as lines on your telephone, but ring your prime line with the appropriate ring when they are dialed.