User's Manual

User Guide for the SIP-T41P IP Phone
108
z 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
more on installation instructions, refer to Phone Installation on page 11.
Check whether dial tone is present on one of the audio modes.
z Switch between the Handset, Headset (if present) or Hands-Free Speakerphone to
check whether dial tone is present for one of the audio modes.
z 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 your phone. To adjust the ringer volume setting, press the
Volume key when the phone is on-hook and idle. For more information, refer to Volume
on page 22.
Why can’t I receive calls?
z Check the SIP registration with your system administrator.
z Check that DND (Do Not Disturb) mode is deactivated on your phone. Refer to Do
Not Disturb (DND) on page 70.
z Check that call forward feature is disabled on the phone. Refer to Call Forward on
page 73.
z Check whether the caller number is stored in the blacklist directory. Refer to
Blacklist on page 34.
Why is my handset not working?
Check that the handset cord is fully connected to both the handset jack on the phone
and handset. Refer to Phone Installation on page 11.
Why is my headset not working?
z Check that the headset cord is fully connected to the headset jack on the phone.
Refer to Phone Installation on page 11.
z Check that the headset mode is activated. Refer to Headset Use on page 39.
z Check that the headset volume is adjusted to an appropriate level. Refer to
Volume on page 22.
What is the difference between user name, register name and display name?
Both user name and register name are defined by the server. A user name is used to