Interconnect with a carrier that runs its own network.
Bilateral voice and SMS exchange, number supply, roaming and signalling, white-label reselling and infrastructure partnerships - with transparent quality data and clean commercials.
600+
Carrier interconnects
6
Own interconnect PoPs
24 × 7
Carrier NOC desk
Six ways to work with Dollu.
Whether you are a Tier-1, a national incumbent, an MVNO, an aggregator or a domestic ISP, there is a programme designed for the traffic or infrastructure you bring.
Voice bilateral & swap
Exchange A–Z traffic on a bilateral basis. We bring direct routes into South Asia, the Gulf and Africa and buy quality supply into Europe, the Americas and APAC. Netting, swap ratios and prepaid/postpaid terms negotiated per partner.
SMS interworking & hubbing
SMPP interconnects for A2P and P2P termination and origination, with MNP resolution, DLR quality guarantees, firewall-integrated monetisation for MNOs and revenue-share models for aggregators.
Number hosting & supply
Supply local, national, mobile or toll-free ranges from your licence into Dollu’s global inventory, or host your numbers on our platform with SIP delivery, porting and compliance handled.
Roaming, signalling & IPX
Roaming hub, steering, testing and clearing for MNOs/MVNOs; SS7/Diameter/HTTP2 signalling transport with security; private IPX-style interconnect for voice, data and signalling.
White-label & reseller
Run your own branded voice, numbers, SMS or CPaaS business on Dollu - sub-accounts, custom rate decks, per-tenant CDRs and portal branding, with wholesale pricing and our NOC behind you.
Last-mile & infrastructure partners
Domestic ISPs and fibre operators who deliver access circuits for our managed connectivity customers, and data-centre or teleport partners hosting Dollu PoPs and media gateways.
What carrier partners get from us.
Real, direct routes
600+ bilateral interconnects, our own switching core and quality-tiered routing - traffic you send us stays on measured, direct paths.
Transparent quality data
Live ASR/ACD/PDD/MOS per route shared with partners; monthly QoS reviews; disputes settled on data, not opinions.
Clean commercials
Prepaid, postpaid and netting; 1/1 billing; USD/EUR/GBP/INR; 7-day notice on rate increases; prompt, accurate invoicing and CDR reconciliation.
Fraud & revenue assurance
Real-time IRSF/Wangiri/AIT detection and blocking on both directions of the interconnect - protecting your revenue as much as ours.
24 × 7 carrier NOC
Engineer-staffed NOC with a dedicated carrier desk, ticketed escalation and named carrier-relations managers in London, Singapore and Noida.
Long-term relationships
Many partners have been with us since our first year. We optimise for durable, growing traffic exchange - not one-quarter arbitrage.
How an interconnect comes together.
- Step 01
Introduce
Email [email protected] with your route list, coverage, volumes and interconnect preferences. Our carrier-relations team responds within one business day.
- Step 02
Test
Exchange IPs or SMPP binds, complete technical forms and run test traffic on priority destinations with our NOC on the line.
- Step 03
Contract
Sign the interconnect agreement - bilateral, prepaid or postpaid - with rate decks, quality tiers and settlement terms defined.
- Step 04
Grow
Ramp traffic under a tracked plan; monthly QoS and commercial reviews expand the exchange over time.
Interconnect specifications.
| Voice interconnect | SIP (UDP/TCP/TLS), SIP-I/SIP-T on request; TDM/SS7 via partner gateways |
|---|---|
| SMS interconnect | SMPP 3.4 binds; SS7/SIGTRAN for MNO interworking; HTTP API |
| Signalling | SS7 (MAP/CAMEL), Diameter, HTTP/2 (SEPP) - transport, hub and firewall |
| PoPs | London, Frankfurt, Amsterdam, Ashburn, Mumbai, Singapore (own); partner PoPs worldwide |
| Media | G.711, G.729, G.722, Opus, AMR-WB; SRTP; T.38 |
| Settlement | Bilateral netting, prepaid, postpaid; USD/EUR/GBP/INR; 1/1 billing |
| Reporting | Real-time CDRs, QoS dashboards, SFTP/API export, monthly reconciliation |
| Contact | [email protected] · carrier desk 24 × 7 via NOC |
Services built for carriers.
- voice
Carrier Interconnection
- voice
Wholesale Voice Termination
- voice
International A–Z Voice Routing
- messaging
Wholesale SMS Termination
- messaging
SMS Hubbing & Interconnection
- mobility iot
International Roaming Services
- mobility iot
Signalling Services (SS7, Diameter, HTTP/2)
- messaging
SMS Firewall & Messaging Security
Carrier partnerships - 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 teamSend us your route list.
Email [email protected] or use the form - include destinations, volumes and interconnect preferences and we will propose a test plan within one business day.
