Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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If your IP phone does not boot, check if the provisioning server is accessible on the
network and a valid software firmware and valid configuration files are available. Try to
use recovery mode to get your phone ready. For more information on recovery mode,
refer to
Recovery Mode on Yealink IP phones
’
The USB port of Yealink IP phone has a limit current of 500 ~ 700mA. Make sure that the
device is USB flash drive or mobile hard disk with low power.
If there is no volume sending from the speaker or sending volume is too low, the
Hands-free MIC cable may not have been properly connected.
If there is no volume receiving from the speaker or receiving volume is too low, the
speaker cable may not have been properly connected.
Ensure that the headset or handset is not damaged. If the headset or handset is usable,
it may be the codec problem on the mainboard.
Do one of the following:
Ensure that the keypad cables is properly connected and not damaged.
Check if the keypad surface is clean.
Do one of the following:
Ensure that the FPC of the touch screen is properly connected.
Check if the touch screen is damaged.
Summary of Contents for CD860
Page 1: ......
Page 45: ...Getting Started 23 For SIP T42G T41P T40P Desk Mount Method Wall Mount Method Optional ...
Page 47: ...Getting Started 25 For SIP T23P T23G Desk Mount Method Wall Mount Method Optional ...
Page 122: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series CP860 IP Phones 100 ...
Page 840: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series CP860 IP Phones 818 ...
Page 995: ...Appendix 973 ...
