Administering applications and options
150 Administering Avaya 9601/9608/9608G/9611G/9621G/9641G IP Deskphones SIP
Comments? infodev@avaya.com
For more information on the parameters, see Customizable system parameters for SIP-based
9600 Series IP Deskphones on page 66.
Multiple Device Access
Avaya Deskphone SIP 6.3 onwards supports Multiple Device Access (MDA) with which you can
register up to 10 SIP devices with your extension.
With MDA you can:
● Make and receive calls to any of the registered devices.
● Switch to another registered device during an active call.
● Bridge on to calls at multiple registered devices.
● Alert all other registered devices for an incoming call to your extension. When you answer
a call on any registered device, the alert on all other devices stops. The other devices
show indication of an active call on the same call appearance number.
● Be on multiple calls at one time on different devices, but only one call per device. For
example, you can listen to a conference call on one device and answer an incoming call on
a second device without putting the conference call on hold. The two calls appear on
separate call appearances on all registered devices.
● Use conference and transfer features. Bridging on to a call at other registered devices and
invoking a transfer drops the call from all devices after the transfer completes.
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