Plan a SIP trunk switch without inbound downtime.
Porting is a fixed moment, so the cutover has to be prepared. Stand up the new trunk in advance, test routes ready, then flip routing on porting day.
Try this first
- 1Set up the new SIP trunk in parallel on the PBX, get registration green before porting.
- 2Test outbound using a CLI from a number not yet ported.
- 3Schedule porting on a quiet moment, avoid Monday morning.
- 4Flip inbound routing on porting day, cancel the old trunk a week later for safety.
When to bring us in
Porting fails technically: call the old provider for an emergency route, do not wait on a ticket, customers keep dialling.
See also
- Voys, BelXS or RoutIT, which cloud PBX fits?Three popular NL platforms, differences are admin UI, partner model and per-user price.
- Teams Phone: Calling Plan, Direct Routing or Operator Connect?Three ways to connect PSTN to Teams, cost and management differ a lot.
- 3CX: self-host on VPS or take 3CX cloud?Self-host saves licence, but you own SBC, backup and updates.
None of the above fits?
Describe your situation below. We pass your input plus the steps you already saw to our AI and return tailored next-step advice. If it's too risky to DIY, we'll say so.
Or skip the DIY entirely
Our Managed IT clients do not look these things up. One point of contact, a fixed monthly price, resolved within working hours.