Category
Craft
How to Structure a Voice Agent System Prompt
The reusable structure behind our production voice-agent prompts: six universal blocks, five earned ones, and the three-tier precedence ladder no vendor guide documents.
Is AI Cold Calling Legal in the UK?
The pages that rank for this question give opposite answers and none of them quotes the statute. The law turns on six words written in 2003, and on a distinction the regulator has never ruled on.
The System Prompt for an Electrician's AI Phone Agent
A complete UK electrician prompt, with the safety block that cannot be copied, the rule that routes network faults away, and the six things the agent must never say.
The System Prompt for a Dental Practice AI Phone Agent
The complete UK dental system prompt, with every emergency line quoted from NHS.uk, the NHS-or-private branch, and the three things it must never assert.
What Happens When the Caller Switches Language?
Two callers most agents handle badly: one on a building site, one who switches to Urdu mid-sentence. What the defaults do, and what the law does not require.
Putting a UK Phone Number on an AI Agent
Which number type to choose, the three routes to connect one, and the emergency-calling question you need to settle before you port anything.
Your Forty Answers Do Not Need a Vector Database
Retrieval adds a hop, a threshold you cannot interpret and a silent failure mode. What the platforms document, and when a knowledge base earns its place.
A Screening Ruleset for Spam Calls to an AI Agent
Nine rules to configure, with the settings, the UK regulator position, and the callers each rule will wrongly block if you set it too hard.
The n8n AI Agent Node That Was Missing Its Connectors
A debugging note. My AI Agent node had one output instead of several, the explanation everyone gave me was wrong, and the cause was my reverse proxy.
Never Send £42.50 to a Voice Model
The voice is fine, the reading is wrong. Why TTS mangles prices, dates and place names, which pronunciation controls work, and the rule that fixes most of it.
Your CRM Has a Note That Says Nothing
What a voice platform emits after a call, why the summary arrives empty, why the contact match fails on UK numbers, and the duty to keep the record accurate.
It Heard Siobhan as Sharon
Names fail several times more often than the headline accuracy figure admits. Why entity error is the metric that matters, and the postcode rule that fixes it.
It Said Booked. The Calendar Says Nothing.
The agent said booked and nothing was created. Why the confirmation runs ahead of the write, why a second availability check will not stop double-booking, and what arrives blank.
Monday the 20th Was a Wednesday
Relative dates break appointment booking for three different reasons, and they all look identical on the call. The reference instant, the four default timezones in one stack, and why the model should never emit a date.
The Line an AI Receptionist Must Not Cross in a Clinic
Care navigation versus clinical triage, what NHS 111 and 999 each mean on a dental call, and the Article 9 duty every ranking page on this topic misses.
Your Voice Agent Passes Every Turn and Still Fails the Call
Per-turn grading misses the failures that lose customers. Cross-turn contradictions, false closures, commitment drift, and the checks that catch them.
Do You Have to Tell Callers They Are Talking to an AI?
The actual law on AI call disclosure in the UK, EU and US, with the statutes linked. The EU duty is now live, one US state covers voice, and the folklore fails.
The Latency Budget of a Voice AI Phone Call
A stage-by-stage budget for a real-time voice agent pipeline. Why endpointing dominates, what STT and TTS vendors actually publish, and the transport myth.
Barge-In, and Why Your Voice Agent Talks Over People
Interruption handling end to end. The four sounds a mic hears, every platform's barge-in settings with defaults, and the output buffers nobody flushes.
Why Declining a Forwarded Call Makes Your Phone Ring Again
Your PBX almost never sees you press decline. What the carrier does with it, what SIP 486 and 603 actually mean, and the settings that fix the loop.
The System Prompt for a Plumbing and Heating AI Phone Agent
The complete, copy-paste system prompt for a plumbing and heating AI phone agent. Emergency triage, the gas refusal, call-out fee rules and dispatch, annotated.
The 11pm Burst Pipe, and What Your AI Receptionist Should Do With It
One emergency call followed from ring to booked job. Safety routing, the on-call rota, what happens when nobody answers, and what it writes into Tradify or Commusoft.
When and How a Voice Agent Should Transfer to a Human
Warm versus cold transfer, copy-paste escalation rules, a priority list, spam screening, and what to do when nobody picks up the phone.
How to Stop Your Voice Agent Hallucinating
Why AI voice agents make things up, and the layered guardrails that stop them. Grounding, tool-call discipline, read-back, refusal rules and how to test it.
How to Write the System Prompt for a Restaurant AI Phone Agent (with a full, annotated example)
The complete, copy-paste system prompt for a restaurant AI phone agent, torn down block by block, with UK allergen, deposit and call-recording rules built in.