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DNS SRV Settings

Fast and resilient call routing is important to have a great VoIP experience. DNS SRV is a technology that helps your VoIP phone route calls to the closest Dash datacenter and in the event of maintenance, technical incidents, or internet interruptions, transparently re-route calls to one of our geographically dispersed, redundant datacenters.

Phones that support NAPTR/SRV records must be configured using one of the below NAPTR/SRV records on the outbound proxy setting:

  • proxy-west.virtualpbx.net
  • proxy-east.virtualpbx.net

NAPTR/SRV records provide a redundant mechanism where phones failover to their closest datacenter when any loss in performance occurs at their primary datacenter. For example, if a phone is configured using the โ€œproxy-east.virtualpbx.netโ€ it will try to place calls on the EAST datacenter and failover to the CENTRAL datacenter should any issue arise. Failover paths operate as follows:

  • West โ†’ Central โ†’ East
  • Central โ†’ East โ†’ West
  • East โ†’ Central โ†’ West

Phones available for auto-provisioning in Dash will be configured correctly and will require no further action. Detailed instructions for updating NAPTR/SRV records are available for the following brands. Donโ€™t see your brand? Contact 24/7 support atย support@virtualpbx.com, by callingย 888.825.0800, or reaching out inย live chat.

  • Cisco
  • Yealink
  • Polycom

Cisco

Ensure the Outbound Proxy has the NAPTR/SRV record for the datacenter that is geographically closest to you and โ€œUse DNS SRVโ€ and โ€œDNS SRV Auto Prefixโ€ are enabled.

Yealink

Ensure Enable Outbound Proxy Server is Enabled and Outbound Proxy Server 1 has the NAPTR/SRV record for the datacenter that is geographically closest to you with Port 0.

Polycom

Ensure the NAPTR/SRV Address contains the datacenter geographically closest to you, Port is set to 0, and Transport is set to DNSnaptr.

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