Stupid Question: Multiple DIDs on a single trunk?

FreePBX Providers
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I’m just a hobbyist and I’m completely self-taught. I’ve successfully run FreePBX for many years, using 3 Google Voice numbers through 2 Obi202s, one trunk from Callcentric, and two MagicJacks through SPA8800. I want to port the MagicJack DIDs and the Callcentric DID over to Twilo.

My question is this: Do I need three separate trunks, one for each DID, or can I use a single trunk? It seems to me that, if Twilo supports it, it’s simply a question of configuring 3 inbound routes, one for each DID, in FreePBX, and 3 outbound routes, that set the outbound DID, using just the single trunk. Would that work?

Thanks in advance.

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You can certainly do it with one trunk, and that’s the recommended way.

However, I assume that as a hobbyist you don’t have a static IP address and therefore will be using SIP registration. With Twilio, there is a minor gotcha if you also want to pass outbound caller ID dynamically. Their article at


explains how to do this.

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