SIP line: the revolution in business telephony
Kavkom’s SIP server is a communications interconnection solution that focuses on the user rather than the device.











What exactly is SIP service?
SIP, the acronym for Session Initiation Protocol, revolutionizes business telephony by replacing traditional telephone lines with Internet-based technology. This protocol uses Voice over IP (VoIP) to establish, modify and terminate communication sessions between devices over an IP network.
Unlike traditional fixed-line telephony, SIP doesn’t rely on complex physical wiring. Instead, it relies on your existing Internet connection, transforming the way businesses manage their communications.
This technology enables not only high-quality voice calls, but also real-time audio and video communications, multi-party web conferencing, and even virtual and augmented reality applications.
Using SIP offers unprecedented flexibility. Whether you’re in the office with a SIP phone, on the move with your smartphone, or working from home on your computer, SIP ensures seamless communication…
This adaptability makes SIP an ideal solution for modern businesses, from SMEs looking to optimize costs to large corporations requiring robust, scalable communications systems.
In short, SIP represents the future of business telephony, offering a more flexible, cost-effective and feature-rich alternative to traditional phone lines. It’s a technology that adapts to the changing needs of businesses in an increasingly connected and mobile world.

SIP line definition and operation
A SIP line, or SIP link, is the digital version of the traditional telephone line.
It uses the Session Initiation Protocol (SIP) to establish voice and multimedia communications over an IP network.
Unlike traditional fixed lines on the switched telephone network (PSTN), a SIP line operates entirely via the Internet, offering unrivalled flexibility and scalability.
The operation of a SIP line is based on the transformation of voice into digital data. When you make a SIP call, your voice is converted into a digital signal and transmitted in packets across the Internet. This process, known as Voice over IP (VoIP), enables voice to be transported like any other data over the network.
Each SIP channel can handle two simultaneous calls: one incoming and one outgoing. This capability multiplies communication possibilities compared with a conventional telephone line. What’s more, SIP lines integrate seamlessly with modern switchboards and IP PBXs, providing a complete business telephony solution.
One of the major advantages of SIP trunks is their ability to adapt to business needs. Unlike traditional lines, which often require physical intervention for any modification, SIP lines can be easily added, removed or modified via a software interface. This flexibility enables companies to quickly adjust their communications capacity to suit their business.
In terms of quality, SIP calls can offer high-definition audio quality, often surpassing that of conventional phone lines. However, this quality largely depends on the stability and speed of the Internet connection. That’s why we recommend a reliable broadband Internet connection to get the most out of a SIP service.
In short, a SIP line represents a significant evolution on traditional telephone lines, offering greater flexibility, functionality and potentially better call quality, while leveraging the company’s existing Internet infrastructure.
“We’ve increased our targets by 10% thanks to the insights we’ve gained from call identification and analytics provided by Kavkom’s telephony solution.”
Dov Dahan
Co-founder @ Formideo

The infrastructure required for a SIP line
To set up an efficient SIP line, several key elements are required:
- Firstly, a stable, high-speed Internet connection is essential. The quality and reliability of your SIP communications depend directly on your Internet access. Sufficient bandwidth guarantees optimum audio quality and enables you to handle several calls simultaneously without loss of performance.
- Next, you’ll need SIP-compatible equipment. This includes specific IP phones or softphones(telephony software) installed on computers or smartphones. These devices communicate via the SIP protocol and integrate seamlessly into your existing IP network.
A central element of the SIP infrastructure is the IP PBX (Private Branch Exchange IP) or IPBX. This modern PBX handles call routing, advanced features such as call forwarding or VoIP voicemail, and provides the interface between your internal network and your SIP provider’s network.
To secure your communications, we recommend the use of a SIP firewall. It protects your network against intrusions, while allowing SIP traffic to flow smoothly.
Finally, you’ll need to choose a reliable SIP provider like Kavkom. This VoIP provider will assign you SIP phone numbers and provide interconnection with the public telephone network.
This infrastructure, while seemingly complex, offers unrivalled flexibility and scalability, enabling you to adapt your communications system to your company’s evolving needs.
Switchboard

How to set up a SIP connection in your company with Kavkom?
Installing a SIP link with Kavkom considerably simplifies the set-up of your corporate telephony system.
Here are the key steps:
- Needs assessment: Kavkom begins by analyzing your communication requirements, taking into account the number of users, call volume and desired features.
- Choice of solution: Depending on your existing infrastructure, Kavkom offers you either a 100% IP solution, or a hybrid solution using a gateway to integrate your existing analog PBX.
- SIP trunk configuration : Kavkom sets up the SIP trunk, which acts as a digital “trunk” carrying your voice communications over the IP network. This trunk interfaces with your IPBX, whether on site or hosted in the cloud.
- IP Centrex integration: For an even more advanced solution, Kavkom can deploy an IP Centrex system, combining the advantages of VoIP and a virtual switchboard, without the need for complex physical installation.
- Equipment configuration : Kavkom helps you configure your IP phones, softphones and other SIP-compatible communications equipment.
- Testing and optimization : Before commissioning, Kavkom performs extensive tests to guarantee call quality and optimize your system parameters.
- Training and support : Finally, Kavkom trains your team and provides ongoing support to ensure a smooth transition to your new SIP telephony system.
Thanks to its expertise as an ARCEP-approved operator, Kavkom guarantees rapid, simplified integration of your SIP service, while ensuring compliance with RGPD laws. This approach enables your company to quickly benefit from the advantages of SIP telephony, without the technical hassle usually associated with such changes.
“We evaluated several service providers, and Kavkom emerged as the only option that allowed us to tailor our customer service requirements to suit our unique business practices.”
Pierre Roche
Managing partner of Groupe OREL

Installing a SIP service with Kavkom requires 4 essential elements
To set up an efficient and effective SIP service with Kavkom, four key elements are essential:
- A SIP account: Kavkom provides you with a dedicated SIP account, easy to obtain and configure. This account is the starting point for your new communications infrastructure, giving you access to all SIP services.
- SIP client: This is a software application provided by Kavkom. This SIP client can be installed on your smartphones, tablets or computers, transforming these devices into real business telephone sets. Thanks to this application, you can benefit from all SIP call functionalities, wherever you are.
- A reliable data connection: Whether via Wi-Fi or cellular network, a stable Internet connection is crucial to guaranteeing the quality of your SIP communications. Kavkom can advise you on the best options, depending on your location and bandwidth requirements.
- SIP communications equipment: Kavkom can help you choose and install the right equipment for your needs. This may include headsets, microphones, webcams, or specialized headphones to optimize the quality of your communications.
It’s important to note that adopting SIP may mean replacing your existing telephone fleet. Kavkom sees this as a modernization opportunity, and can help you select the right equipment to meet the specific needs of your employees, whether they are sedentary or nomadic.
Kavkom stands out for its ability to integrate your SIP service quickly and simply, without the need to install complex additional equipment. Our aim is to bring you the benefits of SIP telephony while minimizing disruption to your business.
Finally, Kavkom places particular importance on compliance with the RGPD laws of June 2018, guaranteeing the security and confidentiality of your data when using our SIP services.
The advantages and disadvantages of adopting a SIP line
Adopting a SIP line has many advantages for businesses, but there are also a few challenges to consider. Let's look at both aspects:
Benefits for companies
- Cost reduction: SIP lines significantly reduce communication costs, especially for long-distance and international calls. Flexible pricing and unlimited call packages help you keep your telecom budget under control.
- Flexibility and scalability : unlike traditional lines, SIP channels can be quickly added or removed as needed, without any physical intervention. This scalability is perfectly suited to growing businesses or those with fluctuating needs.
- Advanced integration: SIP lines integrate easily with modern collaboration tools, CRM and business applications, enabling unified communications management.
- Increased mobility : With SIP, employees can use their business number on different devices, facilitating teleworking and mobility.
- Advanced features : SIP lines offer features such as instant messaging, video conferencing and presence, enhancing productivity.
Potential challenges
- Dependence on Internet connection : The quality of SIP calls depends directly on the stability and bandwidth of your Internet connection. An unstable connection can affect quality of service.
- Initial complexity: Setting up a SIP system may seem complex for companies used to traditional telephony. However, with the support of experts like Kavkom, this transition becomes much simpler.
- Security considerations : IP-based communications require special attention in terms of security to prevent illegal eavesdropping or attacks.
To counter these challenges, Kavkom offers comprehensive support in setting up and securing your SIP system. Our expertise minimizes risks and optimizes benefits, ensuring a smooth transition to this modern technology.


Compliance with GDPR laws of June 2018



Integrated with all your favorite tools
Kavkom integrates quickly and easily with all your CRM tools. Our technical team is with you every step of the way.
Salesforce
HubSpot
Zoho
Pipedrive
Chrome
Zapier
HubSpot
Salesforce
Pipedrive
Zoho
Chrome
Zapier
Discover how Kavkom's SIP line outperforms a traditional line
Are you looking for a simple, space-saving telecommunications solution?
Opt for efficiency with Kavkom’s SIP service, an all-software solution that frees your business from the clutter and costs associated with traditional hardware. Our platform guarantees rapid implementation and simplified management of your communications.
Want to cut your communications costs considerably?
Transform your telephone expenses with Kavkom. Our SIP solution significantly reduces communication costs, eliminating the need for call time, installation and maintenance. Benefit from an attractive business model, with a single flat rate, and say goodbye to the hidden costs of T0/T2 cards and inter-site call charges.
Need flexibility in your telephone system?
Kavkom adapts to your business, offering unrivalled flexibility to meet your ever-changing needs. Our expert customer service is always on hand to ensure a seamless experience, keeping your business agile and responsive.
How can you integrate all Kavkom's features for greater efficiency?
Kavkom’s SIP server revolutionizes the way you communicate by integrating all business telephony features directly into your mailbox. Imagine making and receiving calls, answering messages or checking your voicemail without ever leaving your digital work environment. With our softphone, managing your communications becomes fluid, centralized and incredibly practical, enabling mobility and teleworking. With Kavkom, your business telephony and messaging systems merge, giving you an unprecedented user experience and constant availability.
How can coupling Kavkom SIP telephony with your CRM transform your team's productivity?
Discover the power of voice/data convergence with Kavkom. Our SIP technology synchronizes seamlessly with your CRM, giving your staff instant access to crucial caller information directly on their screens during calls. This integration eliminates time-consuming application changes and reduces errors, while enabling automatic archiving of interactions for easy follow-up. With click-to-call functionality, reaching your contacts becomes child’s play, improving the qualification and retention of your leads in real time.
How can you guarantee the security of your corporate communications?
Thanks to our SIP solution, Kavkom offers you the unique opportunity to own an international virtual number, enabling you to strengthen your global presence. Whether you operate in Europe, Asia or America, our virtual numbers give you local credibility, establishing immediate proximity to your customers and partners abroad. Integratable with an automated call system, this number ensures you’re always reachable on any device, enriched with advanced features like call forwarding and voicemail personalization. Adopt Kavkom to project a strong brand image and develop your business on the international stage.
How to simplify the installation of your telephone system?
Discover simplicity with Kavkom’s WebPhone, our plug-and-play solution that revolutionizes business communication. With no need for hardware or complex configuration, our advanced IP technology gives you unlimited, instant communication wherever you are.
The future of telecommunications for your business
With the scheduled obsolescence of analog lines, switching to SIP is becoming an obvious choice for companies looking to innovate. Orange has stopped selling PSTN lines, announcing the end of analog lines by 2024. In the face of an aging and costly system, VoIP is emerging as the solution of the future. By 2025, all businesses will need to adopt SIP technology to remain competitive, benefiting from advanced features such as centralized instant messaging, fixed-mobile convergence and video calling. Kavkom gives you the opportunity to get ahead of the game with our SIP solution, preparing you today for the future of business communications.
How can a virtual number enhance your image?
With the scheduled obsolescence of analog lines, switching to SIP is becoming an obvious choice for companies looking to innovate. Orange has stopped selling PSTN lines, announcing the end of analog lines by 2024. In the face of an aging and costly system, VoIP is emerging as the solution of the future. By 2025, all businesses will need to adopt SIP technology to remain competitive, benefiting from advanced features such as centralized instant messaging, fixed-mobile convergence and video calling. Kavkom gives you the opportunity to get ahead of the game with our SIP solution, preparing you today for the future of business communications.
How can call forwarding via Kavkom's SIP domain ensure optimum availability?
Kavkom’s SIP server reinvents your mobility and accessibility with flexible incoming call management. Whether you’re in the office, at home or on the move, stay connected to your professional network by choosing the reception station that’s right for you. In the event of unavailability, call redirection ensures that every urgent call is answered, regardless of location. Call filtering by priority allows you to maintain your concentration by blocking non-essential interruptions, ensuring maximum efficiency without compromising accessibility.
SIP telephony operators and packages

How does Kavkom stand out in the world of SIP telephony packages?
Discover Kavkom’s unbeatable offer!
Our tailor-made packages defy all competition:
- Basic Pack: €10/month – The essentials at a low price
- Pack Confort: €20/month – Advanced features for professionals
- Call Center Pack: €50/month – The complete call center solution
- Europe Pack: €80/month – Communicate without borders
Why choose Kavkom?
✓ Ultra-competitive rates
✓ Zero hidden costs
✓ Maximum flexibility
✓ Amazon AWS Cloud technology
✓ Safety and reliability guaranteed
✓ No obligation
✓ Pro-rata billing
✓ 24/7 continuous service
Don’t settle for simple telephony. Choose Kavkom and benefit from a high-performance, secure and cost-effective cloud solution.
Kavkom brings the power of Amazon AWS to your communications!
Take action! Choose Kavkom for business telephony that combines performance, security and competitiveness.