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SIP Trunk for Cost-Effective Business Telephony

Reduce your telephone costs with PRO’AUDIT. We offer professional SIP trunks: unlimited calls, savings of up to 70%, HD quality. Economical and reliable telephony.
Trunk SIP entreprise - connexion opérateur VoIP professionnelle
SIP Trunk Provisioning

   ✔️ Operator login

   ✔️ Stable and secure





SIP trunking - remplacement des lignes RNIS par IP
Lines & simultaneous calls

   ✔️ Unlimited number of channels



Trunk SIP sécurisé - chiffrement TLS et protection des communications
Migration from traditional lines

   ✔️ Seamless transition



Numéros SIP virtuels - DDI et portabilité des numéros
Monitoring & statistics

   ✔️ Call tracking

   ✔️ Audio quality

   ✔️ Real-time volumes


Features included


Implementation of secure SIP trunks

Secure connection between your operator and your IPBX switchboard.

Simultaneous channel management

Number of simultaneous calls adjusted to your needs.

Supervision & logs

Monitoring of SIP flows, volume, automatic alerts.

Redundancy

Multiple Trunks to ensure service continuity.

Fraud protection
Restriction of calls to certain numbers, automatic anti-hacking blocks.
Trunk SIP haute disponibilité - redondance et failover automatique

SIP Trunking is the new standard for connected businesses.

70% 

Modern companies use a SIP trunk.

50 to 70%

reduction telephone costs.

High Definition

Stable connection and guaranteed call quality.


Audit trunk SIP - évaluation qualité et optimisation
Migration RNIS vers SIP - accompagnement et zéro interruption

What is a SIP Trunk?


A SIP Trunk replaces old telephone lines (ISDN/PSTN/Analog) and allows:

  • to pass on the Internet calls (Voice over Internet Protocol)
  • to connect a IPBX/VoIP telephone system
  • centralize all of the company's lines
  • to handle dozens of simultaneous calls
  • add or remove lines instantly


🔗 Subscribe to Trunk SIP starting at $9/channel/month →

SIP Trunk Process




Analysis of your telephone service and current provider
Analysis of your switchboard, your operator, the number of simultaneous calls, and your company's actual usage.



Choosing the number of SIP channels
Define the number of channels required based on your call peaks, your teams, and your business constraints.



SIP configuration on your switchboard & firewall
Configuring the SIP trunk on your IPBX and setting up security rules (firewall, restrictions, anti-fraud).



Load & quality testing
Simultaneous call testing, audio quality control, stability validation before going live.



Production start-up
Activation of the SIP trunk without service interruption and gradual call switching.



Monitoring, supervision, and adjustments
Monitoring of SIP flows, analysis of volumes, and adjustments based on changes in your business.

Connect your switchboard to secure and scalable SIP lines.


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Secure SIP trunk & high availability


Our SIP Trunks are designed for professional use:

  • high availability99.9%

  • dual redundancygeographical

  • intelligent routingcalls

  • HD call qualitywarranty

  • international fraud protection

  • real-time monitoring


🔍 Free SIP Trunk Audit →

Expert SIP trunking - conseil déploiement et maintenance


Partner technologies

Trunk SIP PME - solutions adaptées et tarifs compétitifs
Intégration SIP IPBX - compatibilité et configuration optimale
Microsoft logo
Trunk SIP international - appels internationaux et numéros locaux
logo-3CX
logo-Asterisk
logo-Free
Orange logo
logo-SFR
OVH logo
Monitoring trunk SIP - supervision qualité et statistiques
Contrat trunk SIP - SLA et support technique dédié

FAQ – Trunksip


Connect your telephone switchboard to the internet with our professional Trunksip solution.


🎓 Register for the Telephony Training for SMEs →

A Trunksip is a connection which allows you to connect your telephone switchboard to the internet to make and receive calls via VoIP. It is the modern equivalent of traditional telephone lines, but more flexible and economical.

The Trunksip offers several advantages: reduction in communication costs, flexibility (addition/removal of lines on demand), portability numbers, and integration Easy to integrate with your existing infrastructure. You keep your current switchboard.

Yes, you can. preserve your existing numbers thanks to the portabilityWe take care of the formalities. administrative with your current operator. The transition is seamless for your customers and partners.

For a Trunksip, we recommend an internet connection. professional with sufficient bandwidth: approximately 100 kbps per simultaneous communication. A fiber connection is ideal for ensuring call quality.

The Trunksip is compatible with most telephone standards modern (IPBX, hybrid PBX). We check the compatibility before installation and configure the connection for optimal integration with your existing equipment.

Develop the skills of your teams


    •  Cybersecurity & User Best Practices


    •   Collaborative tools & digital organization


    •  ERP, CRM, DMS & automation


    •   Cloud, infrastructure & telephony


    •    GDPR Compliance & Data Security



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Train your teams on essential IT challenges.







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Adopt a professional SIP trunk for flexible, modern, and cost-effective telephony.

Contact us today to reduce your telephone costs by up to 70% with our SIP Trunk solution.