Start here: Voice desk phone
Plan: LightningArrows Desk Voice — $7.50/mo (≈ $0.25/day).
PSTN: add US DID + outbound in cart (from +$12/mo) or use PayG credit + Bare DID.
Path (field-proven)
- Put your SIP / Cisco MPP/3PCC phone on the LAN (8851 network pattern).
- If the phone is still enterprise firmware, unlock first: E2M field path.
- Add Desk Voice to cart — or bolt Voice onto a cloud server checkout.
- Choose Outside calling (PSTN) when you need cells/landlines.
- Apply SIP credentials or HTTPS provision URL from your order.
- Confirm Status = Registered.
- Register e911 / service address when prompted (required before live outbound).
- Optional: Google Voice forward to your DID (complete the SMS verify on the DID).
- Optional: set Download Picture wallpaper (800×480 JPEG over HTTPS).
Deep links
| Guide | Use when |
|---|---|
| Bolt-in guide | Full step-by-step after MPP |
| 8851 field demo | Copy our desk build |
| How we built Voice | Why SIP + DID, not “GV as SIP” |
| Fulfillment checklist | After checkout |
| Compatible Cisco phones | Model catalog |