The 4-Channel Outbound Sequence: LinkedIn, Email, SMS, and Voice
Single-channel outbound is a coin flip against the inbox filter. Your buyer lives in four places — LinkedIn, email, their text messages, and their phone — and the sequences that book meetings show up politely in all of them, on one coordinated clock.
Why multichannel wins
Every channel has a failure mode: email lands in promotions, LinkedIn requests sit unaccepted, calls go to voicemail, SMS from an unknown number gets side-eyed. But the failure modes are uncorrelated — a prospect who ignores email often answers LinkedIn. Stacking channels multiplies the chance that at least one touch lands.
The single-clock principle
Multichannel fails when it is actually multi-tool: separate LinkedIn, email and dialer cadences blind to each other. One clock means one timeline per prospect — every touch on every channel is scheduled against the same record, and a reply on any channel stops all of them instantly.
A sequence structure that works
Day 1 — LinkedIn connection request. No pitch.
Day 3 — Email #1. Short, specific, referencing something true about the account.
Day 6 — LinkedIn DM (if connected). One question, no links.
Day 8 — Email #2. A different angle, not a "just bumping this."
Day 11 — Call, from a rep through a dialer or an AI voice agent that qualifies and books.
Day 14 — SMS (where appropriate and compliant). Short and easy to answer.
Day 18 — Break-up email. Gracious, door-open.
Compliance is part of the sequence
Unsubscribe links and suppression lists on email, STOP handling on SMS, consent rules on calls, platform limits on LinkedIn — build them into the machine. An opted-out contact must vanish from every channel at once.
When a human takes over
Automation earns the reply; a person earns the meeting. The moment a prospect engages, the sequence stops and a human reads the thread, with context from every channel in one place.