Call center
A centralized phone-support structure, with agents, a queue, a script and productivity metrics, today almost always paired with digital channels.
How to handle this day to day: Shared inbox
Also known as: what is a call center · inbound and outbound call center · telesupport hub · callcenter
Try CRPRO free for 7 daysA call center is the hub that centralizes a business's phone support: a group of agents, a system that distributes calls, and a set of metrics to measure what happens between the ring and the hang-up. The name is from the 1980s; the model is still alive because it solves a simple problem — the phone is a synchronous channel, and someone needs to be available at the exact moment the customer calls.
Inbound, outbound and blended
- Inbound: the customer calls. Support, customer service, scheduling, billing questions. The bottleneck is the queue: if nobody answers, the customer hangs up.
- Outbound: the business calls. Prospecting, collections, surveys, appointment confirmation. The bottleneck is the contact rate — most calls go unanswered.
- Blended: the same agent switches, dialing out when the queue is empty. Cheap, but it kills quality on both sides without a clear priority rule.
How it works inside
The call comes in, goes through the IVR (the keypad menu), gets a topic classification, and lands in a queue. The automatic distributor picks the agent — by rotation, idle time, or skill. The agent answers with the CRM screen already open on the customer's record, resolves it, closes the call, and classifies the reason for contact. Every one of those steps has a timer, and that is where the indicators come from.
The metrics that run the operation
| Metric | What it measures | Classic benchmark |
|---|---|---|
| Service level | % of calls answered within X seconds | 80% within 20 seconds |
| Average wait time | Average time in queue | under 30 seconds |
| Average handling time | Average length of the call | 4 to 6 minutes for simple support |
| Abandonment | % who hang up before being answered | under 5% |
| Occupancy | % of logged-in time spent on calls | 70% to 85% |
Occupancy above 90% looks like efficiency and is actually a warning sign: it means agents have no break between calls, which tanks quality and spikes turnover.
A call center is not a contact center, nor SAC
Three words the market uses as synonyms, and they are not. Call center deals with voice. Contact center puts voice plus email, chat, WhatsApp and social media in the same queue-and-metrics yard. SAC (customer service) is a purpose — the consumer's complaint and cancellation channel — which can run inside or outside a call center.
Where the model breaks down today
The call center was designed for a synchronous, expensive channel, with the customer waiting on the line. On WhatsApp, the customer writes and disappears, comes back two hours later and continues the same conversation. Transplanting the call-center dashboard straight into digital produces nonsensical numbers: a 4-hour handling time, 300% occupancy, unmeasurable abandonment. The operation is still queue, distribution and scale — but the clocks need to be recalibrated for the asynchronous pace.
Frequently asked questions
What is a call center for?
It is the hub that centralizes a business's phone support, with agents, automatic call distribution and queue metrics. It exists to bring predictability to a synchronous channel: someone needs to be available the minute the customer calls. Today most also operate chat and WhatsApp, effectively becoming a contact center.
What is the difference between an inbound and an outbound call center?
In inbound, the customer calls the business — customer service, support, scheduling — and the challenge is having enough people in the queue. In outbound, the business is the one dialing, for prospecting, collections or appointment confirmation, and the challenge is the low contact rate. Blended operations alternate the two with the same team, which cuts cost but usually hurts quality without a defined priority.
What are the main call center indicators?
The five basics are service level, average wait time, average handling time, abandonment rate and occupancy. The traditional service-level benchmark is answering 80% of calls within 20 seconds, with abandonment under 5%. Occupancy above 90% signals a team at its limit, not efficiency.
Are a call center and a contact center the same thing?
No. A call center handles only voice; a contact center puts voice, email, chat, social media and WhatsApp in the same queue and metrics structure. The difference matters when buying a system: voice tools rarely handle asynchronous conversation well, where the customer replies hours later.
Related pages
Related glossary terms
SAC (Customer Service)
The channel through which a business receives questions, complaints and cancellations — regulated by federal decree for companies in specific sectors in Brazil.
Sales pipeline
A representation of the stages a contact moves through from first contact to purchase, used to measure where deals stall and to project revenue.
Sales CRM
A system that centralizes contacts, history and open deals so the sales team does not depend on memory or loose spreadsheets.