Voice-call alerts

Voice-call alerts that wake on-call from a deep sleep

Place real phone calls to landlines and mobiles via the Asterisk PSTN platform. Text-to-speech reads the alert; DTMF tones acknowledge. Used when nothing else can be missed.

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Latency
~8s
Pricing
PAYG · balance
Reach
Any number

Live preview

DEMO

+1 555 0142 · WardenPoint

WardenPoint · 13:42 · 5 min ringing

1 · Ack
2 · Snooze
3 · Escalate

When to pick this

When a phone call is the only thing that works

Phone calls are the loudest channel and the most expensive. Reserve them for the alerts you cannot afford to miss.

DND

Sleeping responder

iPhone repeated calls and Android phone-favourites bypass Do-Not-Disturb. A phone call is the only way to wake someone reliably.

Last resort

Final escalation step

Use voice as step 2 or 3 in the chain — after Telegram or SMS — so the first responder sees it before it ever rings the manager.

Customer ops

Non-engineering recipients

Account managers, support leads and shift supervisors may not run Telegram. A phone call reaches anyone with a number.

Channel profile

What to expect

Real numbers and economics for the PSTN voice path.

Median latency
~8s

From dispatch decision to ringtone on the recipient phone. PSTN carriers add 3–10 seconds.

Cost
PAYG per minute

Voice is billed per minute and depends on the destination region. Pay-as-you-go from your account balance — top up any time, no monthly inclusion.

Delivery proof
DTMF + log

We log dial attempt, answer, DTMF input or timeout. The audit line is signed with the recipient_uuid.

Constraint
Number quality

Toll-free and reputation depend on the originating number. We rotate carriers for reach.

Setup

Three steps to first call

Add the recipient phone, write the script, send a test call. Less than five minutes.

  1. 1Step 1

    Add a phone number

    Recipients → Add → Phone. Include the country code (E.164 format). WardenPoint validates the format on save.

    $ +15550142
  2. 2Step 2

    Pick or write a TTS script

    Default script reads the message body and priority. For technical alerts you may craft a shorter script with macros like {service} and {duration}.

    $ Templates › Voice script
  3. 3Step 3

    Send a test call

    Dashboard → Send test → Voice. The platform places a real call from a WardenPoint-owned number. Use DTMF 1 to acknowledge.

    $ Send test → Voice

Voice FAQ

Common voice-channel questions

By default, a WardenPoint-owned number for your region. Plans on a paid tier can configure their own outbound caller-ID; we verify ownership before enabling it.
Free plan

Place your first real call today

Start free, save a recipient phone, send a test call. The free tier includes a small number of voice minutes to prove the workflow.

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  • Real PSTN call
  • DTMF acknowledgement
  • Signed audit log