“Forward the phones” is too broad to be a deployment plan. A business may want Nova only after several rings, while the line is busy, outside agreed hours, or for a controlled combination.
Start with the carrier and current phone path
Conditional forwarding is carrier-specific. Confirm the public number, carrier, device or phone system, voicemail behavior, and any forwarding already active. Do not publish universal dial codes or assume every line supports the same conditions.
Separate each condition
No-answer routing can preserve the owner's chance to pick up first. Busy routing can help when a line is occupied. After-hours routing follows an approved schedule. Overflow may depend on simultaneous-call behavior. Treat each as its own test case.
Define what the caller hears
For every condition, approve the greeting, answers, fields to capture, transfer destination, and fallback. After-hours coverage should not imply immediate technician availability unless the business explicitly approved that promise.
Protect voicemail, escalation, and rollback
Trace a failed transfer through voicemail or safe fallback and check for loops. AfterTone helps configure and test carrier-specific conditional forwarding while the business keeps its known number. A successful no-answer test does not automatically approve every-call coverage.