Configuring other Desktop Softphones

If it's necessary to use another manually configured softphone, for Mac, Windows or Linux, user these guidelines for the necessary information and settings.

Gather Information for each User:

Each user has a set of credentials which will be needed to configure each phone. For each phone that you are configuring, obtain the following:

  • "SIP Address" (Address of Record)
  • "SIP Password"
  • "Auth Username"
  • "Username"
  • "Domain"
  • "Outbound Proxy"

You can find this information in the OnSIP Admin Portal under the "Users" tab, clicking on "User" to expand boxes, "Phone Configuration" section.


Some applications may look for a phone number instead of username.
The application must have the outbound proxy setting to work with OnSIP.
The application must be able to be configured with Fully Qualified Domain Names (FQDN).
Any NAT traversal applications, including ICE and STUN, should be disabled, and the NAT traversal set to be done manually or by proxy. May also be called Firewall Traversal Method, in which case set to none.

Codecs should be G722, G711u, and GSM, in that order.

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