NFON SIP Trunk
VoIP providers
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€3.60 per month
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What is NFON SIP Trunk
NFON SIP Trunk is a SIP trunking service that connects an organization’s IP-PBX or unified communications system to the public telephone network for inbound and outbound calling. It is used by IT and telecom teams that want to migrate from ISDN/PRI to SIP while keeping existing telephony infrastructure. The service focuses on providing PSTN connectivity, number management, and call routing as a carrier-grade voice access layer rather than a full contact center or sales dialer suite. It is typically deployed alongside PBX/UC platforms and can be paired with NFON’s broader cloud telephony offerings.
Carrier-grade PSTN connectivity
Provides SIP-based access to public telephony networks for voice calling, replacing legacy ISDN/PRI lines. This fits organizations that already run an IP-PBX and primarily need reliable trunking rather than a full application layer. It supports standard SIP interoperability patterns commonly used in enterprise telephony deployments. The product’s scope is clear and focused on voice connectivity and numbering.
Supports PBX/UC integrations
SIP trunking is designed to interoperate with common SIP-capable PBX and unified communications environments. This makes it suitable for hybrid deployments where calling remains on-premises while connectivity is delivered as a service. Compared with application-centric VoIP suites, it can be easier to slot into existing dial plans and call flows. It also helps organizations avoid a full replacement of their telephony stack.
Numbering and call routing
Typically includes management of phone numbers (DIDs) and routing to the customer’s telephony system. This supports multi-site setups where numbers and routing policies must be coordinated centrally. It can simplify migrations by porting existing numbers to the SIP trunk provider. These capabilities align with core requirements for enterprise voice access services.
Not a full UC suite
SIP trunking mainly provides PSTN connectivity and does not replace a full cloud PBX, omnichannel contact center, or sales dialer platform. Organizations seeking built-in CRM workflows, advanced agent tooling, or omnichannel routing will need additional software. This can increase vendor count and integration work. Buyers should confirm which calling features remain the responsibility of the PBX/UC layer.
Requires telephony expertise
Successful deployment depends on correct SIP configuration, security controls, and network readiness (QoS, firewall/SBC considerations). Teams without telecom experience may need partner support to avoid call quality or interoperability issues. Troubleshooting often spans multiple domains (LAN/WAN, PBX, carrier). This can lengthen implementation compared with turnkey cloud calling apps.
Feature set varies by region
SIP trunk availability, numbering options, emergency calling, and regulatory requirements can differ by country. Multi-national organizations may need separate configurations or contracts to meet local rules. Service terms and supported number types may not be uniform across all geographies. Buyers should validate coverage and compliance needs for each operating region.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Basic — Per channel (minimum 2 channels) | €1.80 per channel / month (Germany) | Activation fee: €4.80 one-time per channel; Minute rates: €0.01 (landline) / €0.06 (mobile); Monthly airtime flatrate: €4.80 (landline only) / €11.80 (landline & mobile); Local numbers: 10 numbers = €10 (one-time). Prices vary by country (these are Germany prices). |
| Premium — Per channel (minimum 2 channels) | €2.80 per channel / month (Germany) | Activation fee: €4.80 one-time per channel; Minute rates: €0.01 (landline) / €0.06 (mobile); Monthly airtime flatrate: €4.80 (landline only) / €11.80 (landline & mobile); Local numbers: 10 numbers = €10 (one-time). Premium includes high-availability and conferencing features (see product page). |
| Basic — Small (10 channels) | €16.70 per month (Germany) | Equivalent to 10 channels (simultaneous calls); same activation fee/minute/flatrate/local number pricing as per-channel offering. |
| Premium — Small (10 channels) | €25.65 per month (Germany) | 10 simultaneous channels; includes Premium package features. |
| Basic — Medium (20 channels) | €29.90 per month (Germany) | 20 simultaneous channels. |
| Premium — Medium (20 channels) | €36.85 per month (Germany) | 20 simultaneous channels. |
| Basic — Large (30 channels) | €40.70 per month (Germany) | 30 simultaneous channels. |
| Premium — Large (30 channels) | €50.25 per month (Germany) | 30 simultaneous channels. |
| Basic — Extra Large (50 channels) | €59.90 per month (Germany) | 50 simultaneous channels. |
| Premium — Extra Large (50 channels) | €63.70 per month (Germany) | 50 simultaneous channels. |
Seller details
NFON AG
Munich, Germany
2007
Public
https://www.nfon.com/
https://x.com/nfon
https://www.linkedin.com/company/nfon/
