How to order a DID Number and start making calls

Choose a number, review its requirements and connect incoming calls to the right destination.

This guide explains how to order a DID phone number and route incoming calls to your SIP line, an international phone number or an external SIP system.

What is DID (Direct Inward Dialing)?

A DID is a phone number that routes calls to your VoIP service without requiring a separate physical phone line. You can assign numbers to people or departments and receive calls from traditional telephone networks.

Step 1: Log into your account

Open Services → Phone Numbers and select Order Phone Number. Complete account verification and the service agreement when requested.

Current IllyVoIP Portal — numbers (private account details hidden)

Step 2: Choose a DID number

Select a country, number type and available region. Depending on the product, you can choose a number from stock or request one to be allocated. An order request is not the same as an active number.

Review the setup fee, monthly fee, incoming per-minute rate, billing increments and any connection fee per connected call. Required address details and documents vary by destination. Supply the information requested in the wizard and review the total before placing the order.

Current IllyVoIP Portal — number order (private account details hidden)

Documents, review and activation

Some orders activate automatically; others require staff or regulatory review. Track the request on Phone Numbers and respond to any document request. Wait for the number to show as active before relying on it for incoming calls.

Configuring your DID number

On the active number, select Configure. Review the destination already assigned to the number, choose the routing option you need and save. Do not assume registration of a softphone alone changes the number's route.

Current IllyVoIP Portal — number configure (private account details hidden)

Choosing your call routing option

  • SIP extension: select the SIP identity that should receive calls. Configure and register its device using that identity's current SIP settings.
  • International number: forward incoming calls to the destination you specify. The outgoing forwarding leg may incur additional charges.
  • External SIP server: enter the supported destination details for your PBX and configure that PBX's inbound matching and network access. Use the guidance shown in the current configuration form, not old server IPs from a screenshot.

Other incoming destinations

  • Queue: route calls to a prepared team queue. Add the intended SIP lines as members and review waiting and no-answer behavior.
  • Voice agent / IVR: choose the published flow and check its business-hours and handoff paths.
  • Voice API Control: use this when your application is prepared to handle and control incoming calls through the documented API/event workflow.
  • SIP URI: route to the specific SIP URI supported by your destination system. Confirm inbound matching and network access there.

Only select options available for your number and account. Prepare the destination first, save the number’s route, then test the entire incoming path. A number can be active while its destination is unavailable or misconfigured.

Available extra features depend on the number and destination. Review any fee and approval requirement before requesting CNAM, emergency-service registration or other options.

Test your number

Call the active DID from another phone and confirm that the intended destination rings, both parties have audio and the call report is correct. If it fails, contact Support with the number and public call reference. Keep sufficient balance for renewals and any usage charges.

Manage an existing number

Open Phone Numbers, locate the exact number and choose Configure. Check the number shown in the dialog before editing. Review the current destination, choose the intended SIP line, queue or other available route, save, then test from another phone. An active number and a reachable destination are separate requirements.

Renewals and cancellation

Review the number's monthly price, renewal information and account balance. Incoming usage and a connection fee, where shown, are separate from the monthly fee; forwarding can also create an outgoing charge. Keep sufficient funds for the services you retain.

For an active number, the cancellation confirmation schedules cancellation at the end of the current billing cycle; the number remains active until then. Read the confirmation and resulting state. Cancelling a pending order instead closes the request and releases the reservation according to its processing state. Do not assume a cancelled or released number can be recovered. Contact Support if the status is unclear rather than placing duplicate orders.

Optional number services

  • CNAM: where available, request the outgoing caller name and review the update fee before confirming. This is not caller-ID number verification and does not guarantee that every receiving network displays the name. A submitted request is not the same as an applied update.
  • Fax: use the fax option only where offered and follow its configuration. Check how it affects the incoming destination before replacing a voice route.
  • Emergency registration: supply the requested address and contact information where supported and follow the review status. An address submission or approval must not be treated as proof that emergency calling is operational. Confirm service availability with Support; never place an emergency call as a routine test.

If a number is still pending

Open its request and review whether documents, address information or activation are outstanding. Reply to any information request and wait for the active state. Do not reorder because activation takes time. If progress stops, give Support the number or request reference and the status shown, without exposing identity documents in public messages.

Compare prices without mixing different charges

Compare the same country, number type and region. Setup is an initial order charge; monthly rental keeps the number. The incoming-minute price and billing increments apply to usage, and a connection fee, where shown, is a separate charge per eligible connected call—not another setup fee or a monthly fee. Review the final order quote rather than multiplying a headline price by an assumed duration.

A number offered on request is allocated after submission; it is not an immediately selectable stock number. Missing stock does not necessarily mean a technical fault. Country requirements may include manual document review, and an accepted order is not activation. An existing working number also does not prove that your account has completed all requirements for buying new numbers.

Auto-renewal and document corrections

Check auto-renewal on each number. Turning it off schedules the number to end at the billing-cycle expiry shown in the confirmation, and the number may be lost permanently. Turning it on is not a substitute for having enough balance. After any change, check the resulting state and renewal information; ask Support if the action is unavailable or unclear.

If address or document details need correction, open the existing order’s requested action, provide the required information and submit it there. Do not create a replacement order just to upload corrected documents. Keep identity documents within the secure submission process.

For step-by-step optional services, see caller name, emergency address and fax. Eligible promotions have a separate free-number claim workflow.