Avaya 9400 series - Putting a conference call on hold; Dropping the last participant from a conference call

9400 Series Digital Deskphones Installation
20 Avaya 9400 Series Digital Deskphones Installation and Maintenance Guide
21. In the File to Retrieve field, enter the Zarlink (DSP) file name (for example,
Zarlink_CM_IPO_R0_07.bin).
22. Save your changes.
23. Enter the change firmware station-download command and download the following files
(if appropriate) to the 9400 Series Deskphones:
● boot file (for example, boot94xxR018.bin)
● firmware file (for example, 94xxR19.bin)
● language file (for example, 94xxlng_R18_v07_Pack01.bin)
● font file (for example, JIS.bin)
● Zarlink file (for example, Zarlink_CM_IPO_R0_07.bin)
24. Log out of the Avaya Aura Communication Manager administration interface.