Domain-Based SIP-TRUNK for future-proof integration.

Direct PSTN connectivity for cloud telephony, AI voice systems, voicebots, and contact centers—without any infrastructure changes and without an open gateway.

Pricing for Domain-Based SIP Trunk

FQDN

Domain-Based control instead of fixed IP addresses

∞

Scalable voice channels as needed

HA

High availability through failover and load balancing

Designed for modern language architectures.

The peoplefone Domain-Based SIP-TRUNK is the ideal foundation for all scenarios in which traditional SIP trunk solutions reach their limits—whether in the cloud, with AI, or in hybrid environments.

Cloud-Based phone systems & UC platforms

Direct PSTN connectivity for cloud-based phone systems and unified communications platforms—without the need for on-premises hardware.

AI-based speech systems & Voicebots

Connect AI language models and voicebots directly to the public telephone network—domain-based, scalable, and without latency detours.

Contact Center & Call Center

Highly available SIP connectivity for contact center platforms with failover and load balancing—for uninterrupted operation.

Language analysis & automation

Integration of speech analysis platforms and automation systems with the PSTN—for data-driven communication processes.

Hybrid: On-premises & Cloud

Seamless integration of existing on-premises systems with cloud components—the Domain-Based SIP Trunk complements your environment without requiring any intervention.

Direct SIP Connection for External Services
Connect external voice, AI, or automation systems directly to the PSTN via SIP—without routing through existing systems and without making changes to your existing telephony infrastructure.

Domain-Based SIP Control (FQDN)
Instead of static IP addresses, the Domain-Based SIP-TRUNK relies on a modern, domain-based architecture (Fully Qualified Domain Name). This makes it ideal for dynamic cloud environments where IP addresses change or services scale elastically.

Failover & Load Balancing
The Domain-Based SIP-TRUNK supports modern failover and load balancing concepts. If one connection fails, another automatically takes over—ensuring highly available voice platforms without manual intervention.

No Changes to Your Infrastructure
Existing telephone systems and telecommunications systems can continue to be used. The Domain-Based SIP-TRUNK seamlessly complements your environment without requiring you to modify or replace existing systems.

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Integrated systems

The peoplefone Domain-Based SIP-TRUNK enables these providers to connect to the public telephone network.

Secure SIP integration—without an open gateway.

The Domain-Based SIP-TRUNK was developed for secure operation in professional environments. Only authorized systems are granted access.

Authentication via username and password

No anonymous access—every SIP session is verified

Unique Trunk assignment

Each drink is exclusively assigned to an authorized system

Protection against unauthorized registrations

Unknown endpoints are automatically rejected

No open SIP gateway

Maximum control—no vulnerabilities due to public endpoints

No mandatory IP whitelisting

FQDN-based control instead of static IP assignments—ideal for dynamic cloud infrastructures

Designed for professional environments

Enterprise-grade security architecture for contact centers, AI systems, and cloud platforms

Compatible with existing security concepts

Can be integrated into existing firewall and network architectures

Europe-wide operations

Consistent security standards across all 7 peoplefone countries

More options for your communication

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peoplefone vPBX

The cloud-based virtual phone system—fully hosted and maintained by peoplefone.

Learn more about peoplefone vPBX

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peoplefone 3CX HOSTED

The proven 3CX phone system as a fully hosted solution from peoplefone.

Learn more about peoplefone 3CX HOSTED

Phone numbers

We have the right number of direct extensions for businesses of all sizes.

More About Phone Numbers

Ready for the next generation of voice integration?

Talk to our solution architects—we'll analyze your requirements and show you how the Domain-Based SIP-TRUNK fits into your architecture.

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