Download and installZoiper provides both commercial and free version which is avaliable for download at http://www.zoiper.com/download_list.php?os=All
Once installed, please follow the next few steps to configure Zoiper Softphone to use your CommPeak account. Don't have an account yet? Get one for free.
Configuration1. Right click on the Zoiper application and select "Options".
2. Check Show advanced options. From the left menu click on Add new SIP account.
3. Specify the following details:
- Domain: commpeak.com
- Username: as specified in your SIP Account settings.
- Caller ID Name: usually an inbound number or your SIP ID
- Check Use outbound proxy
- Outbound Proxy: sip.commpeak.com
Once the setup is complete press Register button.