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Acepeak
Feature · Spam call labellingAI

Warn them before they answer.

Tag suspected spam calls so your subscribers see a warning, using the same AI risk score the voice firewall gives every call.

Incoming call
+44 7700 900412
Mobile
Scoring the call…
DeclineAnswer
SIP & SS7
Reads signalling on both networks
AI risk score
Origin, route, CLI and calling pattern
Connect · reject · flag
Policy decides in real time
Every verdict reversible
Logged, and your team can undo it
The label

A warning, not a surprise.

Suspected spam is tagged, so the subscriber sees a warning on the screen instead of an anonymous number.

Same call, two outcomesWithout a labelWith a label
Incoming callMobile
Unknown caller
+44 7700 900412
Nothing tells you who is calling
DeclineAnswer
Incoming callMobile
Suspected spam
+44 7700 900412
A warning is shown before you answer
DeclineAnswer
1
A warning banner
Suspected spam is flagged on the call screen.
2
The answer is held back
The subscriber is told before they pick up.
3
Scored before it rings
The label comes from the same call risk score.

Illustrative

The score

Every call gets a risk score.

AI scores each call setup using the origin, the route, the CLI and the calling pattern history. Policy then connects, rejects or flags it in real time.

Call risk scoring
Call setup
+44 7700 900231
Risk score
12/ 100
SignalsLive
Reject above 80
Flag above 40
10
16
8
14
OriginRouteCLICalling pattern
Verdict
Connected

Low risk, the call rings normally

Connect0 – 40
Flag40 – 80
Reject80 – 100

Illustrative · pick a risk level to try it

Cross-channel learning

Spotted by SMS, labelled on voice.

When the SMS engine sees a scam number, the voice engine acts on calls from it a second later.

Shared telemetry busLive
SMS engineT+0 s
+44 7700 900412
You have a parcel waiting. Confirm your details now at a-short.link
Telemetry bus
Voice engineT+1 s
No incoming call
Waiting

Illustrative

How it runs

Mirror, score, decide, learn.

Calls are read from passive taps, and each outcome makes the next score better.

1Running
Mirror

Passive taps copy SIP and SS7 signalling without touching routing.

2Step
Score

AI scores the call setup against route and number reputation.

3Step
ConnectFlagReject
Decide

Policy connects, rejects or flags the call in real time.

4Step
Learn

Outcomes feed back into the models during daily retraining.

Daily retraining feeds step 1 again

Illustrative

Under the label

What the firewall looks at.

The label rests on checks the voice firewall already runs on every call.

01SIPActive
INVITE sip:+44201234567@carrier.example
From: <sip:+44770090xxxx@unknown-gw>
P-Asserted-Identity: mismatch ANOMALY
Via: SIP/2.0/UDP edge-07

SIP inspection

Every SIP INVITE checked for header anomalies and suspicious origins.

02SS7Active
ISUP
IAM setup
MAP
Routing query

SS7 call control

ISUP and MAP signalling evaluated for illegitimate call setups.

03IdentityActive
CLI +44 20…UK route
Matches the route

CLI validation

Calling line identity checked against the route it actually arrived on.

04TrunksActive
Trunk group TG-07 · baseline

Trunk monitoring

Per-trunk baselines reveal sudden shifts in call volume or destinations.

05ThroughputActive
2,500+calls per second
per node

Carrier-grade throughput

Processes 2,500+ voice calls per second on each node.

06PolicyActive
SMS rulesVoice rules
Policy engine

Unified policy

Voice rules live in the same policy engine as SMS rules.

Illustrative

Your call

Every verdict is logged, and reversible.

Each decision is recorded with its risk score. If a label is wrong, your team can reverse it.

Decision log4 calls
Logged 09:41:07
+44 7700 900412
Labelled
87risk
Origin
Route
CLI
Calling pattern

Illustrative

FAQ

Questions, answered.

It tags suspected spam calls so that subscribers see a warning before they answer. The label is applied when the call is scored, using the same risk decision the voice firewall makes for every call.

Let subscribers see the warning.

Talk to partnerships about labelling suspected spam calls on your network.

Talk to Partnerships Overview