Home / Support / Generic SIP settings for SIP registrations

Modified on October 8, 2021

If your device is not listed in our user guides then you can usually register any generic SIP v2 compliant devices with just a few basic settings. The working associated with the settings can differ from device to device but generally, you should only need the following settings to get registered to Kiwi VoIP:

  • Login/Username/ID: your Kiwi VoIP phone number (NOT ACCOUNT NUMBER)
  • Authorization Username/ID: your Kiwi VoIP phone number (NOT ACCOUNT NUMBER) 
  • Password: your Kiwi VoIP password 
  • Domain/Realm:
  • Proxy:
  • Outbound Proxy:
  • Use Outbound Proxy: yes
  • Register Expires: 600
  • DMTF Mode: RFC2833 (or AVT/out of band)

The DTMF mode should be ‘inband’ in the case where fax machines or alarm systems are being used. There are other settings that can be configured but may differ from device to device on how these are implemented, but in general terms we usually advise customers set the following:

  • Preferred Codec: G.711a (or alaw)
  • Secondary Codec: G.711u (or ulaw)
  • Other default supported codecs: G.722, G.729a, GSM
  • T.38 support: Enabled (for fax machines or alarms)
  • Echo cancelation: Enabled (except for fax machines or alarms)
  • Silence Suppression or VAD: Disabled

If you are unsure about these settings or have any other questions then please contact Kiwi VoIP support.