How to forward calls on Grasshopper
Grasshopper handles forwarding per extension, so you can have "Sales" go to your cell and "Support" go to your AI. This guide covers both extension-level and main-number forwarding.
The quick version
Sign in to Grasshopper at grasshopper.com/login, go to Settings → Extensions, edit the extension, open Call Handling, and set the destination number.
Step-by-step: set up call forwarding in Grasshopper
Alternative: Forward the main number (no extension menu)
If your Grasshopper setup has a single extension or you want callers to skip the menu entirely: in Settings → Numbers → pick the number → When people call this number → choose Forward Call. The caller won't hear the extension menu at all.
Things worth knowing
- Grasshopper extensions can each have different forwarding destinations, so "Sales" could go to your cell while "Support" forwards to your AI.
- Grasshopper's "Schedules" (under Settings) let you forward only during certain hours — perfect for after-hours AI coverage.
- Forwarded calls are billed as standard outbound minutes on your Grasshopper plan.
The whole reason you're reading this is probably to stop missing calls. If you're setting up call forwarding to send calls to a voice assistant, an answering service, or an AI, the steps above are the same — you just enter their number as the forward-to destination. Human Add AI gives you a dedicated AI receptionist that answers 24/7, captures every caller's intent, and texts you the details. Try it free for 7 days →
Troubleshooting
- Calls still ring the old way. Most VoIP systems take 30–60 seconds to apply forwarding changes. Wait and test again. If it still doesn't work, sign out and back in, or restart the desk phone.
- You saved the rule but don't see it. Grasshopper usually applies rules to one specific number or extension. Make sure you're editing the right one — business accounts often have multiple numbers on the same login.
- Callers hear "number not in service." Double-check the destination number you entered. Grasshopper often requires the full 10-digit US format, sometimes with a +1 prefix.
- You want some calls to stop forwarding. Most Grasshopper plans support conditional rules (forward only after X rings, forward only from Y caller ID, etc.). Look for "Advanced" or "Rules" in the forwarding settings.