One platform for SMS, WhatsApp and voice.
Send, route and track business messages and calls across India and global destinations from a single console and one API.
Sandbox access included [CONFIRM OFFER]
Trusted by teams that cannot afford to miss a message
Every channel your customers answer on
Each channel has its own registry, routing and reports, and all of them share one wallet, one contact list and one API.
SMS India (DLT)
Template, header and consent checks run before a message leaves, so DLT rejections drop and delivery reports stay clean.
Explore SMS IndiaGlobal SMS
Operator-aware routing with failover for international destinations, priced and reported country by country.
Explore Global SMSWhatsApp Business API
Register numbers, manage templates, reply from a shared inbox and run bots on the official API.
Explore WhatsAppVoice and IVR
Provision numbers, build call flows in a visual editor and run outbound voice campaigns with call records for every leg.
Explore VoiceSIP trunking
Connect your PBX or contact centre to the network with channel-level limits, caller ID control and CDRs.
Explore SIP trunkingCampaigns and journeys
Plan one audience across SMS, WhatsApp and voice, with consent, quiet hours and fallback rules built in.
Explore campaignsWhat happens between your API call and the handset
Request
Your app calls the REST API or connects over SMPP. Every request is authenticated and rate limited per key.
Scrub
DLT templates, sender IDs, DND lists and content filters are checked before anything is sent.
Route
Traffic is routed by destination, operator and cost, with automatic failover when a route slows down.
Deliver
Messages and calls reach the handset over direct operator and SIP connections.
Report
Delivery receipts, call records and webhooks reach your logs as they arrive.
Know what was delivered, where it failed and why
Reports break traffic down by channel, operator and country, so a slow route or a rejected template shows up the same day.
- Delivery by operator and destination country
- DLR monitor with failure reasons per message
- Searchable message logs and call detail records
- Alerts when delivery drops or the wallet runs low
A REST API, an SMPP gateway and webhooks
Send your first message from the sandbox in minutes. Scoped API keys, IP allowlists and signed webhooks are part of every workspace.
- One API for SMS, WhatsApp and voice
- SMPP binds for high-throughput senders
- Delivery and inbound events pushed to your endpoint
POST /v1/sms/messages
Authorization: Bearer <API_KEY>
Content-Type: application/json
{
"to": "+919800000000",
"sender_id": "TELNXO",
"template_id": "<DLT_TEMPLATE_ID>",
"variables": { "otp": "482916" }
}
Registration and consent rules, handled per market
Telnxo guides you through the registrations each market asks for and enforces them at send time.
India
TRAI DLT: entity, header and template registration, with scrubbing at send time.
United Arab Emirates
TDRA: sender ID registration and operator approval before launch.
Saudi Arabia
CST: sender name registration and local content rules.
United Kingdom
Ofcom and ICO: PECR consent rules and opt-out handling.
United States
10DLC brand and campaign registration, with TCPA consent records.
Singapore
IMDA SMS Sender ID Registry for registered sender names.
Built around the messages your business already sends
Fintech and banking
OTPs, payment alerts and collections reminders with audit trails for every send.
See fintechE-commerce
Order, shipping and cart messages triggered from your store and routed to the right channel.
See e-commerceHealthcare, edtech and logistics
Appointment, fee and shipment reminders with consent and quiet hours respected.
All solutionsStart sending in minutes
Create an account, verify your sender, and send your first message today.