SIP trunks to ISPs

[carl_townshend]

Hi All

A quick quesiton, when we configure a SIP trunk to an ISP on the CUBE, we get given the dns or IP of the SBC of the ISP.

Do they need to know the IP of the CUBE our side and do the same config by routing calls to our CUBE for inbound?

[jonathan.salter · Accepted solution]

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@carl_townshend wrote:

Hi All

A quick quesiton, when we configure a SIP trunk to an ISP on the CUBE, we get given the dns or IP of the SBC of the ISP.

Do they need to know the IP of the CUBE our side and do the same config by routing calls to our CUBE for inbound?

Yes that is correct. They will need to know where to send the traffic to.

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[j.huizinga]

You have to know the provider using IP or FQDN

And they have to know you using IP or FQDN

JH