International Outbound Sales & Support Partner

We don't just make calls. We build sales teams that generate revenue.

Nexus-Tel is the dedicated outbound team behind $40M+ in client revenue, running as an extension of your business, not a rotating call center floor.

Top Rated PlusHighest client-satisfaction tier on Upwork
100%Job Success Score on Upwork
Top 10Ranked call center agency on Upwork
Since 2021Operating as an agency on Upwork
100%
Job Success Score
Top Rated+
Upwork Agency Status
90,000+
Hours on Upwork
376+
Jobs Completed
$700K+
Earned on Upwork
Trusted By

Real clients, real engagements.

IC client logo
2ndLifePhones client logo
TW client logo
DATPROF client logo
Client logo
IC client logo
2ndLifePhones client logo
TW client logo
DATPROF client logo
Client logo
We work across
Healthcare
Insurance
Real Estate
Banking & Financial
SaaS
Solar & Energy
Legal Services
Automotive
E-commerce
Home Services
Healthcare
Insurance
Real Estate
Banking & Financial
SaaS
Solar & Energy
Legal Services
Automotive
E-commerce
Home Services
Book qualified calls Stop chasing dead leads Fill your calendar Real conversations, not scripts Book qualified calls Stop chasing dead leads Fill your calendar Real conversations, not scripts
Results We've Delivered

The numbers behind the calls.

$40M+
In client revenue driven across campaigns to date
$2M+
In sales generated within 6 months on a single project
300+
Qualified appointments booked monthly for a real estate client
25%+
Conversion rates achieved on qualified campaigns
What We Do

Not an answering service. A calling team.

One dedicated bench, trained on your product and your pitch, not a rotating pool of generalists reading a script.

Outbound Sales

Structured cold and warm calling campaigns built around your offer.

Appointment Setting

B2B and B2C appointments booked with qualification criteria your closers trust.

Lead Generation

Multi-channel prospecting that fills the top of your funnel with real interest.

Cold Calling

The first conversation done right, so every lead downstream is worth working.

Warm Transfers

Live handoffs straight to your sales team, no dead air, no lost momentum.

Customer Support

Inbound calls, chat, and email handled by agents trained on your product.

Customer Retention

Proactive outreach and check-ins that keep existing customers renewing.

Why Nexus-Tel

Not just a call center. A revenue engine.

The difference between an agency that fills seats and one that fills your pipeline comes down to how the team is actually run.

01 — Dedicated Teams
Your agents. Your campaign. Your process.
02 — Built Around Your CRM
We work inside your existing stack.
03 — Managed & QA'd
You don't have to manage 20 agents yourself.
04 — Performance Focused
We optimize for appointments, opportunities, and revenue, not call volume.

We plug into the tools you already run on

HubSpot
Salesforce
GoHighLevel
Zoho CRM
Monday.com
Aircall
JustCall
RingCentral
Kixie
Five9
ReadyMode
How It Works

Live in five stages, not five months.

From first call to a fully staffed, reporting team, here's the path every client goes through.

1

Strategy

We learn your offer, market, and where deals are currently falling through.

2

Recruitment

Agents are hand-picked for your industry and campaign, not pulled from a shared pool.

3

Training

Every agent is trained on your product, your CRM, and your objections before going live.

4

Launch

Your team goes live, with baseline reporting running from day one.

5

Optimization

We keep tuning scripts, targeting, and staffing against the numbers we agreed on.

Ready to see what stage one looks like for your business?

Book a Strategy Call
Case Studies

Real campaigns. Real numbers.

A closer look at three engagements, what the client needed, what we ran, and what came out of it.

Real Estate

Filling a Calendar That Kept Going Empty

ProblemInconsistent appointment flow
Campaign Duration6+ months, ongoing
Appointments300+ per month
Revenue Generated$2M+ in 6 months
300+ qualified appointments booked every month
Home Services · Roofing

A Call Center Contract Built on Trust

ProblemNeeded a reliable calling partner
Engagement TypeFixed-price call center project
Contract Value$82,988
Client Feedback5.0 ★ verified review
$82,988 fixed-price engagement, verified on Upwork
SaaS · Digital Marketing

Scaling an SEO Sales Team to 15

ProblemNeeded to scale outbound fast
Team Size15 dedicated agents
Revenue Generated$5M+ client revenue
Conversion Rate25%+ on qualified campaigns
$5M+ in client revenue driven by a 15-person team

Want to see if your industry fits this pattern?

Book a Strategy Call
Client Feedback

What clients say, straight from Upwork.

"Hi there! This is for Salman and Nexus-Tel and I'm thrilled to share my experience with Nexus-Tel. I've had the pleasure of working closely with Nexus-Tel for the past few months. From the moment we partnered with them, it was clear that they were committed to delivering top-notch service and results. Their team of telemarketing experts is truly exceptional. They're not just salespeople; they're skilled communicators who understand our brand and connect with our customers in a meaningful way. I highly recommend them for their skills."

Verified Upwork Client · Long-Term Engagement
★★★★★

"Sam is a great guy to work with and very easy to communicate with. Highly recommend him for any marketing needs!"

Roofing Call Center Client$82,988 project · Verified on Upwork
★★★★★

"LEGEND. Moves fast, answers questions well, good at teaching."

Sales Development Client16-month engagement · Verified on Upwork
★★★★★

"Very professional, caring and responsible. Been using him effectively for two years."

Appointment Setting Client2+ years · Verified on Upwork
Start a Conversation

Ready to fill your calendar with qualified conversations?

Book a Strategy Call