Dollu SIP Trunking
Dollu SIP Trunking: A security-focused SIP trunking service for complex enterprise voice deployments. Ranked #10 of 28 in SIP Trunking Providers by our editors (8.5/10); pricing: Pricing on request; best for secure, resilient enterprise trunking.
At a glance
- Editor score8.5 / 10
- PricingPricing on request
- Best forSecure, resilient enterprise trunking
- Free planNo
- Emergency callingYes
- Founded2016 · Noida, India
- Facts checked19 Sep 2026
Where it wins
- Elastic channels with configurable burst capacity
- TLS 1.2+ signaling and SRTP media encryption
- Geo-redundant failover with Teams and PBX integrations
Where it doesn't
- No public SIP trunk rate card
- Pricing varies by destination, route, volume, and regulation
- Enterprise-focused features may exceed simpler voice requirements
Our verdict on Dollu SIP Trunking
Dollu SIP Trunking connects on-premises and cloud PBXs, Microsoft Teams tenants, and contact-centre platforms to the public telephone network over IP. It is designed for enterprise, carrier, platform, and contact-centre deployments, with coverage in more than 110 countries. The service supports elastic concurrent channels, configurable burst capacity, IP or registration authentication, geographic and toll-free numbers, number porting, and emergency calling with location information where required.
Security and resilience are central to the offering. SIP signaling uses TLS 1.2+ and media supports SRTP encryption, while fraud controls, spend caps, and destination controls help manage misuse and calling costs. Geo-redundant failover across multiple points of presence supports continuity, and near-real-time call-detail records are available through API and SFTP. These capabilities suit organizations connecting distributed voice environments or requiring more control over routing, security, and operational reporting.
Dollu integrates with Microsoft Teams Direct Routing, on-premises and cloud PBXs, SBC platforms, UCaaS environments, and contact-centre platforms. Number porting includes cutover scheduling, which fits planned migrations. Pricing follows a hybrid model: channel or concurrent-call charges are combined with per-second usage, with costs depending on destination, route class, volume, and regulatory cost. Businesses seeking secure, resilient trunking and broad platform compatibility should shortlist Dollu; organizations that require an immediately visible public rate card or a simpler voice setup should compare alternatives.
Your product? Our editors can test Dollu SIP Trunking in depth and publish a review, labelled as paid · from $149/mo →
Dollu SIP Trunking pricing
Dollu SIP Trunking fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Pricing model | Hybrid |
| Concurrent channels | Not verified |
| Number porting | Yes |
| Emergency calling | Yes |
| Toll-free numbers | Yes |
| Encrypted signaling | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Integrations | 5 integrations: Microsoft Teams, on-premises PBX, cloud PBX, SBC platforms, contact-centre platforms |
| Pricing | Pricing on request (source) |
| Website | dollu.com |
| Facts checked | 19 Sep 2026 |
Dollu SIP Trunking integrations
Dollu SIP Trunking lists 5 integrations on its own site.
- Microsoft Teams
- on-premises PBX
- cloud PBX
- SBC platforms
- contact-centre platforms
Alternatives to Dollu SIP Trunking
- IPComms SIP TrunkingA low-cost SIP trunk with encryption, E911, failover, and broad PBX integrations.9.4
- Telnyx SIP TrunkingLow-usage SIP trunking with API setup, calling features, and pay-as-you-go pricing.9.3
- BulkVS SIP TrunkingA low-cost SIP option for North American numbers, PBXs, and carrier workflows.9.2
See all Dollu SIP Trunking alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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