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TServer SIPPremise:TServer:sip-enable-rfc3263


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Published Option

sip-enable-rfc3263

Default Value: false
Valid Values: true, false
Changes Take Effect: After SIP Server restart
Related Feature: DNS Name Resolution

Specifies the DNS resolution mode.

If you set this option to true, SIP Server includes priority and weight information from the Returned Record Set (resolved from the contact option using the internal DNS) when it applies the destination selection procedure. This is in accordance with RFC 3263 and RFC 2782. If set to true, SIP Server ignores the values of the contacts-backup option as redundant.

If you set this option to false, SIP Server does not factor in priority or weight from the RR Set when applying the destination selection procedure (multiple active destinations are given equal ranking). The destinations in this case are taken from the URIs configured in the following DN options:

  • contact
  • contacts-backup (can be several URIs in a comma-separated list)

The Active Out-of-Service Detection procedure uses DNS SRV/A Resource Records resolution for composing a list of transports (protocol, IP address, port) for each contact’s URI. To use priority and weight, set this option to true. To treat all destinations as equal, set this option to false.

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