We recently switched a few users on our IP Office 406V2 3.1(56) system from digital phones (4412D+) to IP phones (4621SW). The voice quality on the IP phones is poor compared to the digital phones, particularly on speakerphone. Does anyone have any tips for improving voice quality? The users are currently on a local LAN dedicated to the phone system, but we plan on also connecting users across the WAN to the IP Office system.
Would upgrading to the latest 4621SW firmware (46xxSIP_040706) help? In order to upgrade do I just need to place the new firmware files in the C:\Program Files\Avaya\IP Office\Manager directory and have the phone access the new firmware via TFTP?
Thanks in advance for your assistance.
V/