YealinkCP860 Phones Configuring Guide
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You can also find the MAC address from the phone’s bar code on the back of the phone.
Why can’t I get a dial tone?
Check for any loose connections and that the phone has been installed properly. For the
installation instructions, refer to Phone Installation on page 1.
Check the dial tone is present for then current call audio modes:
Switch between the Handset, Headset (if present) and Hands-Free Speakerphone to check
whether the dial tone is present for one of the audio modes.
If the dial tone exists on another audio mode, connect a different handset or headset to
isolate the problem.
Why doesn’t the phone ring?
Check the ringer volume on the phone. To adjust the ringer volume setting, press the Volume
key when the phone is on-hook and idle.
Why can’t I receive calls?
Check the SIP registration with your system administrator.
Check that DND (Do Not Disturb) mode is deactivated on your phone. Refer to Do Not
Disturb (DND) on page 43.
Why can’t I send an SMS to any other phone?
SMS depends on support from a SIP server. Contact your system administrator for more
information.
How to reboot the phone?
To reboot the phone via phone user interface:
1. Press Menu->Settings->Advanced Settings->Reboot.
2. Press the Enter soft key.
The LCD screen prompts the following warning:
3. Press OK to reboot.
Note
Any reboot of the phone may take a few minutes.
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