Administrator’s Guide for SIP-T5 Series Smart Media Phones
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Wi-Fi and Bluetooth Issues
Why is the wireless signal strength low?
Ensure the IP phone and your gateway/router are within the working range and there is no
obvious interference (walls, doors, etc.) between them.
Why can’t I connect the IP phone to the 2.4G wireless network?
If you successfully connect the IP phone to the 2.4G wireless network, but the video images is
not smooth. Or, you cannot connect the IP phone to the 2.4G wireless network.
Check if there are too many wireless devices connecting to the same 2.4G wireless
network.
Verify whether the distance between IP phone and the wireless router is too far.
Why can’t I connect the Bluetooth device with the IP phone all the time?
Try to delete the registration information of the Bluetooth device on both IP phone and
Bluetooth device, and then pair and connect it again. Contact Yealink field application engineer
and your Bluetooth device manufacturer for more information.
Why the Bluetooth headset affects IP phone’s voice quality
?
You may not experience the best voice quality if you use a Bluetooth headset while the 2.4 GHz
band is enabled or while you are in an environment with many other Bluetooth devices. This
possible loss in voice quality is due to inherent limitations with Bluetooth technology.
Firmware and Upgrading Issues
Why doesn’t the IP phone upgrade firmware successfully?
Do one of the following:
Ensure that the target firmware is not the same as the current firmware.
Ensure that the target firmware is applicable to the IP phone model.
Ensure that the current or the target firmware is not protected.
Ensure that the power is on and the network is available in the process of upgrading.
Ensure that the web browser is not closed or refreshed when upgrading firmware via web
user interface.
How can I verify the firmware generation and version of the phone?
Tap
Settings
->
Status
when the IP phone is idle to check the firmware version. For example:
Summary of Contents for CP969
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