Preview vs predictive dialer: preparation or volume?
A preview dialer shows the rep the next contact and dials only when the rep is ready, while a predictive dialer dials ahead for a pool of agents to keep them talking. Choose preview for complex, high-value calls and predictive for high-volume campaigns where any agent can take any call.
| Preview dialer | Predictive dialer | |
|---|---|---|
| Who starts the call | The rep, after reading the contact's details | The dialer, ahead of agent availability |
| Preparation before hello | Built in: the rep reviews the record first | Little or none before the call connects |
| Attempts per rep | Fewer than with progressive or parallel dialing | High, across a pool of agents |
| Dropped calls | None caused by dialing ahead | Possible when more people answer than there are free agents |
| Pause after the prospect answers | None caused by dialing ahead; the rep is on the line | More likely while the call is passed to a free agent |
| Typical use | Complex sales, high-value accounts, follow-ups | Collections, surveys, simple appointment setting |
Preview or predictive: the short answer
These two sit at opposite ends of the dialer range. A preview dialer gives the rep time to prepare and calls nothing until they are ready. A predictive dialer keeps a pool of agents busy by dialing ahead of them.
If your reps sell complex deals to named accounts, a preview dialer fits. If your agents work a large list with a short script, predictive dialing fits.
What a preview dialer is
A preview dialer shows a rep the next contact's details before the call and dials only once the rep is ready to go. The rep reads the account, past notes and the reason for the call, then starts it. Many preview dialers also let the rep skip a record that isn't worth calling today.
The cost is time. Every preview adds seconds or minutes before each dial, so reps make fewer attempts per hour than with a progressive dialer or a parallel dialer.
What a predictive dialer is
A predictive dialer dials numbers ahead of agent availability, so that a live answer reaches an agent who is just becoming free. It works for a team, not a single rep, and it is built to keep idle time between calls low.
The risk is in the gap. When more people answer than there are free agents, someone hears silence or a dropped call, which counts toward the abandon rate. Agents also have little time to prepare. Abandoned telemarketing calls are regulated in the US; see the call abandonment rule and the Telemarketing Sales Rule.
Which one fits your team
- Account executives and senior sellers calling named accounts: preview.
- SDRs on a defined list where each call needs some context: preview, or a progressive dialer if pace matters more.
- Call center agents on a high-volume campaign with a short script: predictive.
- Follow-ups after a webinar, a demo or an email reply: preview, so the rep can use what happened before.
Where Personnect fits
There is a third approach between the two. A parallel dialer serves one rep, like a preview dialer, but calls several numbers at once to cut the waiting between conversations.
A parallel dialer is a power dialer that calls several numbers at once, and Personnect dials up to five per rep. The rep is connected the moment a person answers, with the contact's details already on screen. Michael, the assistant built into Personnect, checks each lead's title, company and phone number before anyone dials.
Personnect charges 8.5¢ per minute on answered calls; calls that ring out, are busy or fail cost nothing.
If every call needs several minutes of research first, a preview dialer suits that work better.
Questions, answered
Is a preview dialer slower than a predictive dialer?
Yes. A preview dialer waits for the rep to read the contact and choose to call, so each rep makes fewer attempts. A predictive dialer dials ahead for a whole team, which keeps agents busy but gives them less time to prepare.
Can a predictive dialer be used for B2B sales?
It can, but it fits best where any agent can take any call. Where a rep owns accounts and needs context before speaking, preview, progressive or parallel dialing usually fits better.
What is the difference between a preview dialer and manual dialing?
With manual dialing, the rep finds the contact and enters or clicks the number. A preview dialer still queues the list and places the call, so the rep doesn't hunt for the next record, but nothing rings until they are ready.