What bandwidth do I need for VoIP (Voice over IP)?

For calls to the public telephone network, you should plan for at least 80 kbit/s per voice channel - regardless of whether you are using an IP phone, a local telephone system or a cloud PBX.

The actual bandwidth may vary depending on the codec, encryption and network quality. You should therefore plan for 20-30% additional bandwidth to compensate for fluctuations and parallel data transmissions.

Practical example: For 10 simultaneous VoIP calls, you need at least 1 Mbit/s upload speed.

Our VoIP offer can be used worldwide - from any Internet connection that meets these requirements.

Extra tip: Your broadband connection is not charged for internal calls via a local telephone system.