Start with users and calls
Count extensions, simultaneous internal and external calls, branches and expected growth separately.
RASID COMMUNICATIONS GUIDES
How to choose an IP PBX
A practical checklist for capacity, endpoints, connectivity and total project scope.
DESIGNED AROUND YOUR OPERATION
Four steps to a clearer decision
Map the call routes
Document business hours, IVR choices, ring groups, queues and fallback destinations.
Check the full ecosystem
Confirm phones, headsets, line interfaces, network resources and backup requirements.
Compare the complete scope
Separate equipment, software, licenses, line services, installation, training and ongoing support.
What should be agreed at handover?
- A documented equipment and license list
- Test calls: inbound, outbound, transfers and after-hours behavior
- Administrator access and an agreed backup plan
- Handover notes and support responsibilities
A CLEARER PROJECT BRIEF
Tell us how your business communicates
Share your user counts, branch details and requirements so we can discuss the right scope.
PRACTICAL ANSWERS
Business PBX questions
How do I estimate the size of a business phone system?
Separate the number of extensions from the number of simultaneous external calls. Also list sites, users, call routing and growth needs so the proposed system and licenses can be checked against the actual workload.
Should the PBX be on-site or hosted?
Compare administration responsibilities, connectivity, continuity needs and the available support arrangement. Ask for a clear description of what is hosted, what remains at your site, and any recurring licenses or service charges.
Can existing business phones be reused?
Provide the exact phone models and firmware details where available. Check the proposed PBX’s supported device list and required features, then test a representative device before assuming every existing phone can be retained.
Are telephone numbers and call service included with the PBX?
Treat the PBX equipment or software and the telephone service as separate scope items unless the quotation explicitly combines them. Confirm responsibility for numbers, external calling capacity, provider coordination and ongoing charges.
How should business-hours and after-hours calls be handled?
Write the intended call flow before configuration: greetings, departments, fallback destinations and closing-time behavior. Review the wording in the required languages and test each route with a real representative call.
What should be included in a PBX handover?
Agree on the extension list, call-flow diagram, authorized administrator access and configuration backup process. Test the required incoming and outgoing calls, transfers and fallback paths, and document any functions excluded from the scope.