You want to migrate your existing ISDN line to the newest technology? Discover Call Connect and Multiline and contact us. We will be at your side to guide you during the migration!
As from €19.12 /month
Manage all your business calls in the Cloud
The professional IP phone line for small enterprises connected to your phone exchange.
The simple and high quality phone line, ideal for independents!
And call unlimited to all fixed lines and benefit from a big chunk of national and/or international calling minutes. You pay a fixed amount per month, so no unpleasant surprises on your bill.
€12 /month (excl. VAT)
€15 /month (excl. VAT)
€10/month in the new Packs Bizz All-in and included for free in the Packs with Bizz Call Connect and Bizz Mobile 12 GB.
Phone Line over IP technology is now included as standard in all new Bizz All-in or Bizz Office packs. In practice, this mean that everyone who opts for a new Bizz All-in or Bizz Office can make calls on a HD phone with excellent digital sound quality.
You already have a pack with Phone Line and you also want to benefit from this excellent sound quaility? Then call our customer service on 0800 55 500 or visit a Proximus Center to switch of charge to Phone Line over IP.
Your calls go through your modem instead of the traditional voice channel. Since voices are first digitized by the HD phone, they’re transmitted almost undistorted. So, ideally, all callers should have a HD phone to get the most out of the quality.
Calls in digital quality don't cost more than normal calls. The standard Phone Line rates remain applicable. And the HD phone itself is not expensive: you can get one for just €49.58 (VAT excl.).
Do you want to benefit from this excellent sound quality on your fixed phone? Then call our customer service on 0800 55 800 or visit a Proximus Center to switch free of charge to Phone Line over IP. A Proximus technician will come by to install this technology (and, if necessary, a more recent modem) free of charge. Your can still use your current phone but to make calls in HD you will, of course, need a HD phone.
No. A call with IP technology has no impact on the internet volume.
If you don't have a telephone exchange, these devices can be directly connected to the "b-box 3V+" modem (2 ports possible).
For an alarm that uses the landline as a communication channel, we recommend you equip the line with a UPS battery (battery backup b-box 3V+) to prevent power cuts.
Phone Line over IP phones have to be connected to the electricity grid. To guarantee the functioning of devices for which continuity of voice and data connection is crucial (alarms, surveillance lines, etc.), we recommend you equip your modem with a battery (battery backup b-box 3V+). This battery ensures Phone Line over IP continues to work by providing one hour of electricity on a "b-box 3V+" modem and an optical-fiber modem (OLT: Optical Line Termination). To guarantee the functioning of your telephone exchange, we also recommend you opt for a UPS battery (Uninterruptable Power Supply).
In the rare cases where there no DSL access or optical fiber is available (less than 5% of Belgian territory), Proximus will continue to provide a traditional PSTN telephone service in the years to come.
Offer without fixed-term contract. Customers can cease having the product at any moment and without any penalty fees, provided they give 1 month notification.
Conditions Professional line (ISDN)
Conditions Bizz IP Telephony Multi
Conditions Phone Line over IP
Phone line installation charge
Installation lead time
Besides a junction box and a terminal (telephone, fax, etc.), the installation only requires a connection to the Proximus network.
However, you do need the following Proximus infrastructure:
If you do not have the appropriate infrastructure, please call our Customer Service in order to take the preliminary steps.
Your appointment will be confirmed by SMS and by telephone
We work hard to continuously improve our service. To make sure that our appointments for installations and repairs can proceed smoothly, all appointments are confirmed by SMS. Moreover, our technician will call you about 30 minutes before arriving at your premises.
The installation charges of €114.05 include: