Specification sheet · Voice & Wholesale Carrier Services
Enterprise & Business Voice
One managed voice service for every office and every country - SIP trunks, numbers, PSTN breakout and calling plans on a single platform, integrated with your PBX, Microsoft Teams or contact centre.
Managed global voice for enterprises: SIP trunking, numbers in 110+ countries and PSTN breakout on one platform, integrated with your PBX, Teams or contact centre.
- Countries with numbers
- 110+
- Carrier interconnects
- 600+
- Contract, platform and invoice
- 1
At a glance
- SIP trunks, numbers and PSTN breakout in 110+ countries
- Direct Routing, Operator Connect, Zoom Phone and Webex Calling
- Works with Cisco, Avaya, Mitel, AudioCodes, Ribbon and Oracle SBCs
- Per-user, per-site or metered calling plans in one contract
- Compliance recording with encrypted archiving and retention rules
- In-country regulatory registrations handled by our desk
- One portal, one invoice, one 24×7 NOC across all countries
- 99.99% core availability with geo-redundant PoPs on three continents
Typical use cases
- 01Multinational head-office and branch estates
- 02Microsoft Teams voice rollouts
- 03Contact centres with global reach
- 04Mergers, acquisitions and carve-outs
- 05Regulated industries
Technical & commercial specifications
| Coverage | Numbers in 110+ countries; PSTN breakout worldwide |
|---|---|
| Integration | Teams Direct Routing/Operator Connect, Zoom, Webex, SIP PBX/SBC, CCaaS |
| Signalling | SIP over UDP/TCP/TLS; registration or static IP; SIP OPTIONS keep-alive |
| Media | RTP/SRTP; G.711, G.729, G.722, Opus; T.38 fax |
| Numbers | Local, national, mobile, toll-free; bulk porting per country |
| Calling plans | Per user, per site, pooled or metered; USD/EUR/GBP/INR |
| Recording | SIPREC; AES-256 storage; retention, legal hold, PCI pause/resume |
| Resilience | Geo-redundant core; dual-PoP trunks; 99.99% core availability |
| Support | 24×7 NOC; P1 response ≤ 15 min; named account manager; QBRs |
Talk to Dollu about Enterprise Voice
Send us your destinations, volumes, sites or use case and we will return a proposal, pricing and a technical plan within one business day. Test credentials and the full service description and SLA document are available on request.
- Sales
- [email protected]
- Phone
- +91 777-500-2222
- Web
- dollu.com
- NOC
- [email protected] · 24×7
Dollu Ltd · 2403A, Iconic Corenthum, Sector 62, Noida 201301, India. This sheet summarises the standard service; specifications may vary by country and are confirmed in the service order.
Online version: https://dollu.com/services/voice/enterprise-voice
Contact: https://dollu.com/contact?service=enterprise-voice