Omnichannel business messaging · Colombia
Instant communication for your business’s critical processes
SMS, RCS, WhatsApp, Twnel and Email on one platform and one API. More than 23 years helping Colombia’s most demanding companies communicate securely, on time and in full regulatory compliance.
- ISO/IEC 27001:2022
- Up to date with CRC rules
- 23+ years in Colombia
- 6B+
- mobile messages and Emails processed per year
- 42M
- unique Colombians reached every month
- 3.000
- transactions per second at peaks
- 23+ years
- operating the SMS channel in Colombia
Channels
All your channels, one platform
Pick the right channel for each message, or orchestrate them with automatic overflow so nothing goes undelivered.
What your customers see
Messages people read, understand and trust
A code that arrives in seconds, a notification with buttons and a verified brand, an appointment confirmed on WhatsApp, a delivery signed on Twnel. All from one platform.
- 10:24
Today · 10:24
Inalambria Bank: Your verification code is 482913. It expires in 5 min. Never share it with anyone.
Text messageSMSVerification codes and alerts
- 10:24
Today · 10:24
Hi Ana! Your order #4821 is on its way 🚚. Arriving today between 2 and 5 pm.
Track orderChange addressRCS messageRCSVerified brand and buttons
- 10:24
TODAY
Hi Carlos, this is a reminder of your general medicine appointment tomorrow at 8:30 am at our Chapinero branch. Can you confirm?
ConfirmRescheduleMessageWhatsAppAppointments and conversations

TwnelDeliveries with photo and signature
Solutions
Solutions for every company, industry and need
Solutions sized to your operation, from small businesses to wholesale carriers.
Enterprise
Since 2003 we have supported Colombia’s 500 largest companies in their most demanding communication processes: high availability, certified security and a dedicated team.
Learn moreWholesale
For carriers, international aggregators and CPaaS platforms that need to deliver messages in Colombia with quality, compliance and direct connections to every local operator.
Learn moreSMBs
With Inalambria Express, small and medium businesses, practices, academies and shops send effective messages from the web in minutes, with prepaid plans and the same reliable network banks use.
Learn moreStartups
Free text messages, consulting with our experts and Twnel at no cost, so you can add the power of instant messaging to your app, website or venture.
Learn moreExperience in Colombia’s most demanding sectors.
Financial services
Trust and security in every transaction
Learn moreHealthcare
Patients who show up for their appointment
−40 % in appointment no-shows at a clinicLearn moreRetail
More sales on the dates that matter
+25 % in sales during weekend campaigns for a storeLearn moreGambling
Fast sign-up and payouts, with responsible gaming
Customers: Winner GroupLearn moreNon-profit
Reaching those who need it most
Learn moreE-commerce
Customers informed from checkout to delivery
Customers: Melonn, ComboplayLearn morePublic sector
Timely information for every citizen
Customers: Acueducto de Bogotá (EAAB), Acueducto de BogotáLearn moreEducation
Lower delinquency and more enrollments
15 % conversion rateLearn moreTech
Messaging ready for your product, without regulatory friction
Customers: E-Line, ITPLearn moreWhat you can achieve with business messaging.
Alerts and notifications
Transactions, reminders, order updates, due dates and service notices delivered in seconds, over priority routes with real-time reporting.
Learn moreMarketing and promotions
Promotions, launches and loyalty campaigns over SMS, RCS, WhatsApp and Email, with segmentation, personalization and automatic RNE and send-window controls.
Learn moreVerification
One-time codes for sign-up, login and transaction approval, isolated from bulk traffic and backed by automatic cross-channel failover.
Learn moreFraud detection
AI against smishing, dedicated short codes, verified senders and real-time transaction confirmation.
Learn moreHybrid communication
Orchestrate SMS, RCS, WhatsApp, Twnel and Email from a single integration, with automatic overflow, load balancing and rules per message type.
Learn moreEvery channel, one platform and one API.
SMS
The universal channel: it reaches every phone, with no data plan or app required. More than 23 years operating SMS for the most demanding companies in Colombia, with direct, redundant connections to every mobile operator.
Learn moreRCS
Rich messages with images, video, carousels and buttons, right in the phone’s native messaging app. Nothing to install, with automatic fallback to SMS.
Learn moreTalk to your customers on the app Colombians use the most: notifications, customer care, sales and collections with approved templates, interactive buttons and payment links.
Learn moreTwnel
The enterprise alternative to unproductive WhatsApp usage and custom app development. Conversations, forms and automated workflows for drivers, couriers, sales reps, installers and field technicians.
Learn moreStatements, invoices, confirmations and campaigns with high deliverability, on the same platform and with the same reports as your mobile messages.
Learn moreCompliance
Experts in Colombian regulatory compliance
Running messaging in Colombia requires deep knowledge of CRC, SIC and Financial Superintendence regulation. We’ve been doing it for more than two decades, so your campaigns and notifications arrive without legal risk.
Excluded Numbers Registry (RNE)
We automatically screen commercial sends against the CRC’s RNE.
Law 2300 of 2023
Permitted hours and frequency for advertising and collections.
Data protection (Law 1581 of 2012)
Habeas data, consent and data subject rights.
CRC regulation
Short codes, PCA registration and user protection rules.
ISO/IEC 27001:2022
Certified information security management system.
Financial Superintendence
Circular 052 compliance for the financial sector.
Developers
Integrate in minutes with our REST API
Bearer Token authentication, JSON payloads, SMS and RCS from the same endpoint, and status reports delivered to your own infrastructure through callbacks.
- Base:
https://rest.inalambria.com - SMS, RCS, WhatsApp and Twnel through one integration
- Webhooks carrying your own business data
# 1. Request a token (Basic Authentication with your credentials)
TOKEN=$(curl -s -X POST https://rest.inalambria.com/token \
-u "$INALAMBRIA_USER:$INALAMBRIA_PASSWORD" \
-H "Content-Type: application/json" \
-d '{"grant_type": "password"}' | jq -r '.access_token')
# 2. Send an SMS (Colombia: 12 digits, 57 + mobile)
curl -X POST https://rest.inalambria.com/mtmessage \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-d '{
"Type": 1,
"MessageText": "Your order PEDIDO-4471 is on its way",
"Devices": "573001234567",
"CustomMessageId": "PEDIDO-4471"
}'// Node.js 18+
const BASE = 'https://rest.inalambria.com';
async function getToken() {
const basic = Buffer.from(`${process.env.INALAMBRIA_USER}:${process.env.INALAMBRIA_PASSWORD}`).toString('base64');
const res = await fetch(`${BASE}/token`, {
method: 'POST',
headers: { Authorization: `Basic ${basic}`, 'Content-Type': 'application/json' },
body: JSON.stringify({ grant_type: 'password' }),
});
const { access_token } = await res.json(); // default lifetime: 4 hours
return access_token;
}
const token = await getToken();
const res = await fetch(`${BASE}/mtmessage`, {
method: 'POST',
headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' },
body: JSON.stringify({
Type: 1,
MessageText: 'Reminder: your appointment is tomorrow at 8:30 am',
Devices: '573001234567',
}),
});
console.log(await res.json()); // { TransactionNumber, Status: 0 | 1, MessageText }# Python 3 + requests
import os, requests
BASE = "https://rest.inalambria.com"
token = requests.post(
f"{BASE}/token",
auth=(os.environ["INALAMBRIA_USER"], os.environ["INALAMBRIA_PASSWORD"]),
json={"grant_type": "password"},
timeout=10,
).json()["access_token"]
resp = requests.post(
f"{BASE}/mtmessage",
headers={"Authorization": f"Bearer {token}"},
json={
"Type": 1,
"MessageText": "Your October invoice is now available",
"Devices": "573001234567-573007654321", # several destinations separated by a hyphen
"DateMessage": "2027-01-15 08:00:00", # scheduled send (optional)
},
timeout=10,
)
print(resp.status_code, resp.json())
Our commitment
Obsessed with serving our customers
Our customers choose us because we have a 24/7 operations team dedicated to them, we understand the complexity of their businesses and we support them through the successful implementation of their projects.
24/7 operations
An operations team dedicated to your needs, every day, at any hour.
We understand your business
We understand the complexity of your processes and stay with you until every project is successfully implemented.
More than 23 years of experience
We have backed the most sophisticated instant messaging operations in the country.
Mobile networks fail. We respond.
Given the nature of mobile networks, failures, outages and interruptions are part of operating them. The difference is how you respond: when something fails, we are always there, with the dedication of a team that has been doing this for more than 23 years.
That’s what sets us apart.
We respond right away
Our 24/7 team is ready to act the moment something fails.
We resolve it as fast as possible
We restore the service and keep you informed along the way.
We learn and improve
Every incident leaves lessons we build in to make the operation stronger.
Success stories
Real results from our customers
Public sector
Acueducto de Bogotá (EAAB)
Bogotá’s water and sewerage utility informs hundreds of thousands of citizens within minutes about outages, emergencies and campaigns, and strengthens collections with automated SMS.
- SMS
in sales during weekend campaigns for a store in Bogotá.
Retailin appointment no-shows at a clinic in Medellín with SMS reminders.
Healthcareconversion rate on SMS enrollment campaigns for an academy in Cali.
EducationContact
Let’s talk about your project
Leave your details and a specialist will contact you to understand your needs and propose the best solution.
- Guidance on channels, volume and regulation
- Assisted testing and integration
- Already a customer? Use the support form.
- Small business? Start today with Inalambria Express.