Inside Sales
Inside Sales
What is inside sales?
- Selling remotely by phone and video, without visits
- Lower cost, more touches, greater efficiency
- Pair with in-person meetings for big deals
What inside sales really changes is the 'unit' of selling. In field sales, a day's output is bound by travel time and tops out at two or three meetings; go remote and the same hours allow eight to ten conversations. Sales is then managed not by 'how many places did you visit' but by 'how many conversations did you move to which stage.' Because call recordings, email threads, and video records all land in the CRM, even the way a team lead reviews deals changes. A pipeline once reported by gut feel becomes one verified by records.
Teams usually split into inbound response and outbound prospecting. For inbound, which handles inquiries and content requests, first-response speed decides success; for outbound, where reps work lists directly, targeting precision does. The line with field sales is drawn by deal value and decision-making structure, not by habit. Korean SaaS and solution companies typically use an annual contract value of a few tens of millions of won as the threshold: inside closes everything below it, and deals above it, or involving three or more decision-makers, go to a field AE. It is not the same as telemarketing. The goal is not to finish in one call but to move a deal through evaluation over 3 to 6 touchpoints.
The most common mistake is treating inside sales as a cheap call center. The moment you measure KPIs on call volume alone, reps fill the day with three-minute, box-ticking calls. Within six months a usable lead list is burned out, and you can no longer even call the same company. Launch without a written handoff standard and SDRs and AEs end up arguing over whose deal it is while the customer is neglected. Conversely, dragging a deal worth hundreds of millions of won out over video just to save on travel often ends with it reversed in a last-minute executive meeting. Assume trust builds more slowly remotely than in person, and decide up front how far you will go remotely.
John KimAuthor of B2B Marketing Design and CEO of Nanum Consulting
Jaehyuk ParkHands-on instructor in B2B technical sales and AI-driven sales strategy| Category | Inside (office-based) | Field (outside) |
|---|---|---|
| Method | Phone, email, video | In-person visits |
| Strengths | Low cost, many contacts | Deep relationships, big contracts |
| Good fit | Repeat, small-to-mid deals | Complex, large deals |
It spread with advances in communication and video technology and the rise of SaaS sales, and it has become the standard remote sales model, as opposed to field sales.
Consider a hypothetical case. Company A sells logistics management SaaS, with 140 employees and annual revenue of KRW 32 billion (≈ US$23,941,300). All 12 salespeople worked mainly through in-person visits; each lost 3 hours a day to travel alone, and website inbound inquiries waited an average of 2 days for a first response. Word around the company was that half of those inquiries went to competitors before anyone replied.
- Kim, the head of sales, went through the last six months of 42 closed deals and found 31 had annual contract values under KRW 30 (≈ US$1) million, yet they consumed half of all on-site visit effort. The meeting opened with: "Did we really need to go for these?"
- They set KRW 30 million (≈ US$22,400) as the cutoff: below it, four inside reps own the deal through to contract, and two new SDRs were hired. For inbound inquiries, a CRM alert enforces the rule of making the first call within 30 minutes of receipt.
- Park, the inside sales team lead, standardized the 25-minute video demo script. It now opens with "You run two warehouses. What time does your inventory close?" and maps out the customer's workflow first, then brings up the screen.
- In the weekly deal review, the team listens to call recordings together and flags deals with 'no response two weeks after the demo.' They also put the handoff rule in writing: deals with three or more decision-makers, or worth over KRW 100 (≈ US$1) million, go to Lee, the field AE.
- Six months later, monthly meetings per rep rose from 9 to 31, and first response to inbound inquiries dropped from 2 days to 38 minutes. The average sales cycle for deals under KRW 30 million (≈ US$22,400) shortened from 47 days to 26, and quarterly closed deals rose from 21 to 34.