TUTORIAL SIP URI Calling with PIAF5

wardmundy

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As Easy As 1-2-3: SIP URI Calling with PIAF5

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Photo Credit: FingerMedium/GettyImages

As part of the PIAF5 install procedure, 3CX registered an FQDN for you with one of the 3CX domains if you indicated that your server had a dynamic IP address. Unless you really know what you're doing with DNS, it's a good idea to tell 3CX you have a dynamic IP address whether you do or not, e.g. even if you have a static IP address on a server such as CloudAtCost. Here's why.

Once you have an assigned FQDN in the 3CX universe, one very slick feature is the ease with which you can publish a SIP URI address for any or all of your 3CX extensions thereby allowing users to receive calls from any SIP client worldwide at no cost. Setup takes less than a minute, and it gives you the equivalent of a second (free) trunk with the Free version of PIAF5.

Here are the 3 steps:

1. Login to the 3CX GUI and goto Settings → Network→ FQDN. Tick "Allow calls from/to external SIP URIs" and make note of your FQDN, e.g. mypiaf5server.3cx.us. Click OK.

2. For the extension you wish to enable (e.g. 001) , goto Extensions → Edit 001 → Options → SIP ID and enter the desired SIP URI alias for this extension, e.g. billybob. Click OK.

3. Anyone with a SIP client anywhere in the world can now call extension 001 using the SIP URI: [email protected]

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