Beyond the system prompt, VoiceForge Pro gives you a set of controls that shape how your agent handles calls at a technical level — silence detection, call duration limits, interruption handling, and more. This article explains every setting and what to adjust for your business type.
Where to find these settings
Go to Agents → Edit → Agent Setup. Scroll past the system prompt and voice selection to the Call Behaviour section. Settings here apply to every call this agent handles.
Silence detection
Silence detection controls what your agent does when the caller stops speaking. Two settings:
Silence timeout — how to tune it
- 0.5–0.8s — default. Works well for most English-language calls with clear audio.
- 1.0–1.5s — better for callers who speak more slowly, have strong accents, or pause mid-thought. Reduces the agent interrupting before the caller has finished.
- 0.3–0.5s — faster response. Suits high-volume, transactional call types where speed matters.
Interruption handling
When a caller speaks while the agent is talking, two things can happen:
For most businesses, Stop and listen is correct. It feels more human. Use "Finish then respond" only if you have compliance or legal reasons to ensure certain information is always delivered completely.
Call duration limits
Set a maximum call duration to protect your minute allowance from outlier calls. The agent will politely close the call ("I've reached my time limit for this call — let me arrange a callback so we can continue") when the limit is reached.
- Most service businesses: 8–12 minutes. The vast majority of calls complete in 3–5 minutes.
- Complex consultations: 15–20 minutes.
- High-volume transactional: 5–6 minutes. Forces efficient calls.
Call opening behaviour
Most businesses should leave this off — callers expect the business to answer, not silence. Enable it only if your caller base tends to speak immediately when a call connects, creating a clash with the opening greeting.
Business booking configuration
If you've connected Google Calendar, additional booking settings appear:
- Working hours — the days and hours your business accepts appointments. The agent won't offer slots outside these hours.
- Booking lead time — minimum notice required for a new booking. E.g. "2 hours" means the agent won't book anything in the next 2 hours.
- Appointment duration — the default length of a booking slot. Used when creating calendar events.
- Buffer time — gap between appointments. Prevents double-booking.
These values are injected directly into your system prompt when you sync, so your agent always knows your real availability.