Help understnading sip trunks & Dids

[billtepe]

Hello,
3cx newbie here. Hoping to get some basic understanding of how trunks and dids work. I have a working setup on the cloud using Callcentric sip trunk and a telephone number (DID). I need to have a second telephone number with calls coming through the first number going to some of the office staff via Digital Receptionist (this is done and working great) and the calls from the second telephone number going to other staff members in the office. So, I guess my question is, can there be 2 telephone numbers on the same sip trunk. Then have separate inbound rules for each one to send the caller to the correct Digital Receptionist? It boils down to having 2 companies in the same small office that want to retain their own phone numbers that they have had for decades. If anyone can give me some guidance as to the best practices way of doing this I would be grateful.
Thanks,
Bill

 

[eddv123]

Have you read this yet : https://www.3cx.com/docs/manual/inbound-did-call-routing/

It will pretty much cover inbound routing. To answer your question yes you can have multiple DDI's on a SIP trunk but they need to be added to the trunk itself and then routed separately via the inbound rules.

 

[YiannisH_3CX]

Hello @billtepe

You can have multiple DIDs under the same trunk and a separate Inbound rule for each DID. Under the trunk settings you will see a tab called DIDs. Your main trunk number should already be listed there. Add your extra numbers there and then proceed in adding your inbound rules. In addition to the link @eddv123 provided i think you would find the following useful: https://www.3cx.com/3cxacademy/videos/basic/configuring-voip-providers/