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Inbound Numbers, IVR & Callback Routing

Configure inbound voice routing (forward, IVR, callback) and inbound SMS on your assigned numbers.


Manage Inbound Numbers →

Inbound Numbers, IVR & Callback Routing

Beyond outbound termination, your wholesale account can also receive real inbound traffic — voice and SMS — on numbers assigned to you by 6X. This covers how to configure a number once it's assigned, build a basic IVR menu, and use callback routing.

Getting a Number

Order one yourself from Buy a Number in the sidebar (updated 2026-10-29) — pick a country and type, pay the monthly cost plus a one-time activation fee (shown together before you order), via your wallet balance or USDT with a payment screenshot. You will not see the exact real number before paying — we activate it and send it to you by email or live chat, usually within one business day. Once assigned, it appears under Inbound Numbers in the sidebar with independent Inbound and Outbound toggles, so a number can be inbound-only, outbound-only, or both.

Routing Types

Open Inbound Numbers → Configure on any assigned number to choose how it handles incoming calls:

  • Forward — bridges the call straight to a number or SIP URI you specify (e.g. your own softswitch or SIP endpoint).
  • Basic IVR — plays a greeting and routes the caller by key press. Build menus under Basic IVR in the sidebar.
  • Callback — answers, asks the caller to enter a number, then calls them back on that number — routed through your account's normal outbound rates/balance, same as any call you place yourself.
  • None — the number doesn't accept inbound calls even if the Inbound toggle is on.

Building a Basic IVR Menu

  1. Go to Basic IVR in the sidebar and click Create IVR Menu.
  2. Name the menu and optionally upload a greeting WAV — drag and drop or click to browse, auto-converted to the right format. Leave it blank for a default tone.
  3. Add key options: for each digit, choose Forward (bridge to a number/SIP URI), Callback, Operator (same as Forward, for a "press 0" style option), or Hangup.
  4. Set the input timeout and max invalid attempts, then save.
  5. Assign the menu to a number under Inbound Numbers → Configure, routing type Basic IVR.

Inbound SMS

If your assigned number is SMS-enabled, inbound text messages to it are logged automatically — check SMS CDRs, where inbound messages show a purple ⬇ IN badge and a Received status, separate from your outbound sends.

Billing

💡 Inbound is free. Inbound voice minutes and inbound SMS are not billed — only the number's monthly rental plus a one-time activation fee, both charged when you order it, apply. Callback calls are the one exception: the outbound leg back to the caller is billed at your normal rate, since it's a real call your account is placing.

Notes

  • DTMF is RFC2833 by default across the platform — there's no per-account setting for this yet.
  • Ordering a number yourself (Buy a Number) and routing configuration (forward destination, IVR menu, callback, in/outbound toggles) are both fully self-service — only the actual number sourcing/assignment step is done by 6X after you order.
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