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- Test Test Test. There are many factors that can impact call quality of a softphone including the headset, the workstation, and the Internet connection. We highly recommend that each user test the softphone to determine if their configuration will work.
- Headset Quality is Important. There are many headset options and lower quality headsets will result in lower call quality. Different headset models may need to be evaluated for the best call results.
- Home Networks. The following settings should be configured in each user's Internet modem / router.
- Ensure the modem/router is upgraded to the latest firmware.
- Turn off “SIP ALG".
- Make sure that no NATs (“Network Address Translations”) are configured and NAT is not enabled on the modem.
- Disable Stateful Inspection.
- Confirm that the modem is configured to NOT block SIP traffic.
- UC-One and VPNs. Many organizations implement a VPN for remote users to connect to the office which may impact softphone deployments. For more considerations, please see UC-One and VPNs.
Leverage a Physical Handset (Polycom, Yealink, Cisco, etc.)
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