Cisco 8811 User Manual page 12

Differences Between Phone Calls and Lines
Differences Between Phone Calls and Lines
We use the terms lines and calls in very specific ways to explain how to use your phone.
• Lines—Each line corresponds to a directory number or intercom number that others can use to call you.
• Calls—Each line can support multiple calls. By default, your phone supports two connected calls per
USB Ports
Only for Cisco IP Phone 8851 and 8861.
Your phone may have one or more USB ports. Each USB port supports a maximum of five USB devices.
Each device connected to the port is included in the maximum device count, including any Key Expansion
Modules.
For example, your phone can support five USB devices on the side port and five additional standard USB
devices on the back port. Many third-party USB products contain more than one USB device, and thus count
as more than one device.
If you use a USB hub and remove the USB cable from the phone during an active call, your phone might
Note
restart.
Related Topics
The Cisco IP Phone 8800 Series
Mobile Device Charging
You can use the USB ports on your phone to charge your mobile device if the device has a USB connection.
The following ports support USB charging:
Your phone continues to charge the mobile device while it is in power saving mode.
When you use your phone to charge your mobile device, the following conditions apply:
• A short delay may occur before charging begins.
• In some situations, your device will not display the charging icon. For example, the icon may not display
• When more than one Cisco IP Phone 8800 Key Expansion Module is attached to your phone, the back
Cisco IP Phone 8800 Series Multiplatform Phones User Guide
12
You have as many lines as you have directory numbers and phone line icons.
line, but your administrator can adjust this number according to your needs.
Only one call can be active at any time; other calls are automatically placed on hold.
Here is an example: If you have two lines and each line supports four calls, then you could have up to
eight connected calls at one time. Only one of those calls is active and the other seven are held calls.
when the device is fully charged.
USB port cannot fast-charge the device.
Your Phone