The carrier behind global voice, numbers and messaging.
Dollu is a global carrier and communications provider. We interconnect directly with Tier-1 carriers and domestic operators, provision numbers in 110+ countries, and deliver voice, messaging, APIs and enterprise connectivity on our own network - for carriers, contact centres, platforms and enterprises worldwide.
- Wholesale voice on 600+ direct Tier-1 & MNO routes
- Numbers in 110+ countries, local in 100+
- A2P messaging, CPaaS APIs and cloud contact centre
- MPLS, SD-WAN, cloud and security - managed 24×7
Trustedby carriers, platforms and enterprises
99.95% customer retention · 500+ deployments · 2M+ users connected
110+
Countries with numbers
600+
Carrier interconnects
3B+
Minutes carried / year
99.99%
Core availability
One carrier for voice, numbers, messaging and the network beneath them.
76 services across 10 portfolios - each with a detailed page covering capabilities, onboarding, specifications and FAQs. Start with the four most requested, or browse the full catalogue.
01 · 11 servicesVoice & Wholesale Carrier Services
Global A–Z voice termination, SIP trunking, carrier interconnects and voice-quality management over Dollu's own switching core, with direct routes to 600+ carriers.
02 · 10 servicesGlobal Numbers & DIDs
Virtual numbers, DIDs, toll-free, mobile and cloud calling numbers across 110+ countries with regulatory-compliant KYC, porting and inbound routing.
03 · 9 servicesMessaging & A2P SMS
Enterprise and wholesale A2P SMS, international SMS termination, OTP/verification, RCS and WhatsApp Business messaging over direct MNO connections with SMS-firewall protection.
04 · 7 servicesCommunication APIs (CPaaS)
Voice API, SMS API, Verify (OTP) API, Video/WebRTC API and Email API with SDKs, webhooks and carrier-grade delivery - build communications into any application.
- 8 services
Unified Communications & Contact Centre
Cloud PBX, UCaaS, omnichannel CCaaS, Microsoft Teams Direct Routing/Operator Connect, IVR and conversational AI - delivered on Dollu's carrier network with global numbering.
Explore - 9 services
Network & Connectivity
Enterprise WAN and internet: MPLS/IP-VPN, dedicated internet access, SD-WAN, Ethernet private lines, managed WAN/LAN/Wi-Fi, cloud and data-centre connectivity, and private 5G.
Explore - 6 services
Cloud & Hosting
Cloud infrastructure, private and hybrid cloud, managed hosting, cloud migration, backup and disaster recovery, and edge/GPU compute - with private connectivity built in.
Explore - 7 services
Cyber Security
Network-integrated security: DDoS mitigation, managed next-gen firewall, SASE and Zero Trust access, managed detection and response, and security assessments.
Explore - 5 services
Mobile, Roaming & IoT
IoT connectivity with eSIM and multi-carrier SIMs, international roaming and steering, SS7/Diameter signalling services, and fleet & asset tracking solutions.
Explore - 4 services
Media & Content Delivery
Global video transmission for contribution and distribution, live-event and remote-production connectivity, and content delivery network services for OTT and gaming.
Explore
- 76 detailed service pages · full A–Z on the services index
View all servicesBuilt like a carrier. Run like a partner.
Most communications vendors resell somebody else’s network. Dollu owns its interconnects, numbering agreements, switching and operations - and wraps them in the service level enterprises and carriers expect.
A network built for the traffic that matters - voice, messages and the data behind them.
- Prepaid & postpaid · USD, EUR, GBP, INR
- SIP, SMPP, REST APIs & SDKs
- TRAI/DoT, Ofcom, FCC, GDPR aware
- ISO 27001-aligned operations
Direct routes, own network
600+ bilateral carrier and MNO interconnects, our own softswitch core and a 1.4 Tbps backbone. Fewer hops means better CLI, lower PDD and margins we pass on.
Numbers where others can’t
Direct numbering agreements in 110+ countries - including hard-to-source markets across South Asia, the Gulf and Africa - with KYC handled by our compliance desk.
Quality you can measure
Live ASR/ACD/PDD/MOS per route, handset-level SMS DLRs, circuit telemetry and SLA reporting - visible in the portal and via API, not buried in a monthly PDF.
Fraud & security in the path
IRSF/Wangiri detection, SMS firewall, DDoS scrubbing and Zero Trust enforcement inline at our PoPs - protecting your margin and your customers.
24 × 7 NOC, named humans
Engineer-staffed NOC with 15-minute P1 response, a named account manager for every customer and monthly QoS reviews for committed volumes.
One relationship, one invoice
Voice, numbers, SMS, APIs, connectivity, cloud and security from a single provider - one portal, one contract, one throat to choke.
Local presence in 110+ countries. Carrier reach everywhere else.
Own PoPs in Mumbai, Singapore, London, Frankfurt, Amsterdam and Ashburn; partner PoPs on every continent; direct numbering and voice agreements with domestic operators. Explore country-by-country guides for our key markets.
110+
Countries with numbers
100+
Countries with local (geographic) numbers
230+
Voice termination destinations
220+
SMS destinations
- BOMMumbai
- DELNoida
- SINSingapore
- LONLondon
- FRAFrankfurt
- AMSAmsterdam
- IADAshburn
- LAXLos Angeles
- DXBDubai
- JNBJohannesburg
- GRUSão Paulo
- SYDSydney
- HKGHong Kong
- NRTTokyo
Solutions shaped by the sectors that run on communications.
Compliance, integrations and operating models tuned to your industry - on the same network, numbers and APIs.
Banking & Financial Services
Carrier-grade OTP messaging, secure contact-centre voice and private connectivity for banks, insurers, NBFCs and fintechs - built for regulated traffic, audited networks and zero tolerance for downtime.
ExploreContact Centres & BPO
CLI-guaranteed outbound termination, inbound toll-free and DIDs in 100+ countries and a CCaaS stack that scales from 20 seats to 20,000 - for operators who live by answer rates and cost per minute.
ExploreCarriers, MNOs & MVNOs
Wholesale voice and SMS, bilateral interconnection, roaming and signalling, A2P monetisation and number hosting - from a carrier that operates 600+ direct interconnects and 800+ SMS operator connections.
ExploreHealthcare & Life Sciences
Appointment reminders that cut no-shows, telehealth voice and video APIs, number masking that protects patient privacy and connectivity built for clinical uptime - with GDPR- and HIPAA-aligned controls.
ExploreE-commerce & Retail
Order OTPs and shipping notifications at peak-season scale, WhatsApp and RCS engagement, delivery number masking, omnichannel support and store connectivity - one carrier across the whole customer journey.
ExploreTravel, Hospitality & Logistics
Booking and gate-change alerts in any country, local numbers for every property and hub, IoT SIMs and fleet tracking across borders, and a contact centre that follows the sun.
ExploreMedia, Broadcast & Gaming
Contribution and distribution circuits for broadcasters, CDN and live-event connectivity, a low-latency 1.4 Tbps backbone, DDoS protection for game servers and voice and chat APIs for in-game communities.
ExploreSaaS, ISVs & Startups
Voice, SMS, verify and video APIs on a carrier's own network, numbers in 110+ countries, white-label reselling and usage-based pricing - from your first sandbox call to your first hundred million.
Explore
What network and operations leaders say.
From wholesale carriers to hosting providers and service platforms - the teams who run traffic on Dollu every day.
“dollu revolutionized our VoIP operations with AI automation, ultra-low latency, and real-time analytics - exceeding our expectations.”
“With dollu’s AI-driven network automation, Fibre Air achieved seamless bandwidth allocation and latency reduction, enhancing reliability.”
“dollu’s cutting-edge cloud solutions boosted our hosting infrastructure with superior uptime, security, and blazing-fast speed.”
“dollu streamlined our UAE-based service platform with AI-driven customer engagement and backend optimisations, delivering an unbelievable experience.”
Questions we hear most.
A quick primer on who we are and how we work. For anything more specific, the solutions team is a message away.
Still have a question?
Ask our solutions teamTell us where you need to connect.
Destinations, countries, sites, volumes - a solutions engineer will come back with a proposal, rate deck or design within one business day.
- Sales[email protected]
- 24 × 7 NOC & support[email protected]
- Phone+91 777-500-2222
- Headquarters2403A, Iconic Corenthum, Sector 62, Noida 201301, India
- Hours24 × 7 NOC · Sales 09:00–19:00 IST
