Unified Communications & Contact Centre
Cloud PBX, UCaaS, CCaaS, Microsoft Teams calling and conversational AI - carrier voice and global numbers included.
110+
Countries for calling plans
40+
Channel & CRM integrations
99.99%
Platform uptime
UC & Contact Centre, delivered as one portfolio.
Dollu combines the carrier layer - numbers, SIP, PSTN breakout - with the application layer - cloud PBX, collaboration, contact centre - so enterprises get one provider, one bill and one throat to choke for their entire communications stack.
Deploy a full cloud phone system for a 20-person office or a 2,000-seat omnichannel contact centre. Bring calling to Microsoft Teams, Zoom or your existing CCaaS with Direct Routing and BYOC. Automate front-line service with IVR, voice bots and AI agents that hand off cleanly to humans.
All of it runs on our geo-redundant voice core with global numbers, fraud protection and quality monitoring built in.
Everything in UC & Contact Centre.
Each service has its own detailed page - overview, capabilities, onboarding, use cases, specifications and FAQs.
Cloud PBX & Business Phone System
Hosted PBX with auto-attendant, ring groups, voicemail-to-email, call recording, softphone and mobile apps, provisioned desk phones and numbers in 110+ countries.
Unified Communications as a Service (UCaaS)
One app for calling, meetings, messaging and presence, with Microsoft 365, Google Workspace and CRM integrations and calling plans in 110+ countries.
Cloud Contact Centre (CCaaS)
Cloud contact centre with omnichannel routing across voice, chat, email, WhatsApp and social, plus skills-based routing, IVR, dialler, WFM, QM and CRM integrations.
Microsoft Teams Direct Routing & Operator Connect
PSTN calling in Microsoft Teams via certified-SBC Direct Routing or Operator Connect, with numbers in 110+ countries, compliance recording and Zoom Phone BYOC.
IVR & Conversational AI
Visual IVR builder, speech recognition and NLU voice bots in 30+ languages, LLM-based agents with guardrails and warm hand-off to humans for self-service that works.
Omnichannel Customer Engagement
Journeys across SMS, WhatsApp, RCS, email, voice, push and in-app, with campaign management, marketing automation, customer data and consent on one platform.
Video Conferencing & Collaboration
Enterprise video meetings, webinars and managed rooms with PSTN dial-in in 110+ countries, recording, live transcription and Teams, Zoom and Webex interoperability.
Agent Assist & Conversation Analytics
AI agent assist and conversation analytics: live transcription, suggested responses, sentiment, auto-summaries, QA scoring of 100% of calls and CRM write-back.
What sets our uc & contact centre apart.
Carrier + application in one
Numbers, SIP and PSTN from the same provider as your PBX or contact centre - no finger-pointing between vendors.
Bring your own platform
Direct Routing, Operator Connect, Zoom Phone BYOC and SIP integration for Genesys, Five9, Amazon Connect and more.
AI where it helps
Conversational IVR, voice bots, agent assist and post-call analytics that reduce handle time, not customer trust.
Global by default
Local numbers and calling plans in 110+ countries with in-country compliance already solved.
Built for the sectors that depend on communications.
- 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.
- Contact 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.
- Carriers, 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.
- Healthcare & 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.
- E-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.
- Travel, 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.
- Media, 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.
- SaaS, 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.
UC & Contact Centre - common questions.
The questions customers and carriers ask us most often before they interconnect. If yours is not here, our team answers within one business day.
Still have a question?
Ask our solutions teamOther service areas.
- Voice & 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.
- Global Numbers & DIDs
Virtual numbers, DIDs, toll-free, mobile and cloud calling numbers across 110+ countries with regulatory-compliant KYC, porting and inbound routing.
- Messaging & 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.
- Communication 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.
- 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.
- 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.
- Cyber Security
Network-integrated security: DDoS mitigation, managed next-gen firewall, SASE and Zero Trust access, managed detection and response, and security assessments.
- Mobile, Roaming & IoT
IoT connectivity with eSIM and multi-carrier SIMs, international roaming and steering, SS7/Diameter signalling services, and fleet & asset tracking solutions.
- 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.
Talk to our uc & contact centre team.
Share your requirements - destinations, countries, sites, volumes - and we will come back with a design and commercial proposal within one business day.
