Call Routing and Distribution

Owned by Kelly Evans (Unlicensed)
Last updated: Jun 29, 2023 by Kyle W.
1 min read

The Peeredge SBC supports:

  • Load balancing (similar to round robin)

  • Failover (primary/secondary, etc)

  • Weighted distribution for PSTN Inbound (Customer Originating) calls

46 Labs typically recommends an evenly weighted (i.e. 50/50, 33/33/33, etc.) distribution. A weighted distribution attempts to contact all active customer SBCs/PBXs before returning a SIP 503 Service Unavailable to the upstream PSTN provider.

When using load balance distribution, a SIP 503 Service Unavailable is sent to the upstream PSTN provider if there is no response from the first customer SBC/PBX contacted.

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