Q: What is an "outbound proxy"?

An outbound proxy is a system you send all your SIP requests to.

Q: What should I set it to?

sip.onsip.com

While there are circumstances where a network administrator may require a different setting, the only setting that we currently support for outbound proxy is 'sip.onsip.com' (leave off the quotes please).

Q: Must it be configured?

Yes.

The OnSIP Hosted PBX service will not work completely if the outbound proxy is not configured. Unless you have a concrete reason not to and clearly understand what you are doing, we very strongly recommend you configure the outbound proxy for your devices utilizing Junction Network's OnSIP Hosted PBX service.

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