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A contact method is a phone number you register so scaling.cloud can page you on it during an incident — by SMS, by an automated voice call, or both. It sits alongside email as a paging channel: email is always sent, and a verified phone number adds faster, harder-to-miss channels on top.
Contact methods settings

Manage your phone numbers under Settings → Contact methods

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How contact methods work

  • Separate from your login. A contact method is the phone you want paged on. It is independent of any phone tied to your sign-in or two-factor — registering one here doesn’t change how you log in.
  • Scoped to one organization. A contact method belongs to you within a single org. If you respond for more than one organization, you register and verify your number separately in each — your paging preferences never leak across orgs.
  • Verified once, before it can page. A number is never paged until you’ve proven you control it (see Verification). Until then it sits unverified and is skipped entirely.
  • Channels you turn on. A verified number carries two independent toggles — SMS and voice — so you decide how it pages you.

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Verification

When you add a number, scaling.cloud sends a one-time code to confirm you control the line. The delivery channel depends on the line type, which scaling.cloud detects automatically: Enter the code to finish. A landline verifies by voice call because an SMS to it would silently fail — and SMS cannot be enabled on a voice-only number.
The verification code is short-lived and rate-limited. If you request too many codes in a short window, wait a few minutes before trying again.

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Paging channels

Once a number is verified, toggle the channels you want:
  • SMS — a text with the incident title, severity, a link that opens the incident, and a short code you can reply to acknowledge without opening the app. See Acknowledgment & handoff.
  • Voice — an automated call that speaks the incident. Answering the call acknowledges it — no keypress. If the call goes to voicemail it counts only as delivery, and escalation continues. See Paging & notifications.
Email is a floor you can’t switch off. SMS and voice are additive opt-ins on top of it — there’s deliberately no way to disable every channel and go silently dark. Turning a phone channel off just removes that channel; you’ll still be paged by email.

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Managing your numbers

Everything lives under Settings → Contact methods:
1

Add a number

Enter the number in E.164 format (e.g. +15551234567). scaling.cloud detects the line type and sends a code on the right channel.
2

Verify

Enter the code you received. The number flips to verified, with the default channel for its line type enabled.
3

Choose channels

Toggle SMS and voice to match how you want to be paged.
4

Remove when stale

Delete a number you no longer use — a deleted contact method is never paged again.
Register your number before you’re on call. A verified phone with SMS and voice enabled means a page reaches you even when you’re away from email — exactly when escalation matters most.