ANTIFRAUD SERVICES FOR TELECOM OPERATORS

Real-time fraudulent calls detection

BUSINESS AND RESIDENTIAL VOIP SERVICES

Incredible prices for all the world
Call from a real phone, PC or smartphone

About us

How does it work

To use 4z.com, nothing is more simple: you just need a highspeed Internet connection, ADSL or cable, and one of our handsets. Plug it to the Internet and that’s it! You also can use a classic analogical telephone to take advantage of the 4z.com offer with the help of one of our adapters, or you can make and receive calls directly with your PC after having downloaded our free software.

An incomparable tariff offer with traditional telephony

Communications costs proposed by 4z.com are without competition with traditional operators. 4z.com offers you free telephone calls for many countries in Europe for example. Further, a call to China on the fixed network costs 2 swiss cents per minute compared to 65 swiss cents with a classic Swisscom line, that is to say, 30 times cheaper with 4z.com!

A real telephone number

Every 4z.com’s customer receives a real swiss telephone number (ex. 021 550 11 12).

With 4z.com, you are reachable everywhere in the world, as at home

Your telephone number (for example 021 550 11 12) follows you everywhere so that you remain reachable at any time and so your calls are always invoiced with the local rates. If you take along your 4z.com telephone on a journey, you will not have to pay roaming costs any more! 4z.com is the solution to the prohibitive prices practised by the mobile operators for the use of the portable telephone abroad.

A fairer invoicing, to the second

Our invoicing is done second by second, so there is no next minute round off. With Swisscom, the call’s duration is round up to the next 10 cts. Other operators round up to the next minute. Thus, with 4z.com, you can make an additional saving which can represent up to 30% of the monthly invoice.

Real-time fraudulent calls detection

Our server analyzes the actual behaviour of your customers based on:

Called destinations
Frequency of calls
Call usage
Call duration
Account connection location

Based on customer usage, our server will recognize and distinguish the real calls

VoIP subscription plans

Prepaid

Free calls to 54 countries

3 Simultaneous calls

No contractual period

No connection fee

Per second billing increment

No invoice

0 CHF/mo
Subscribe now

Private

Free calls to 54 countries

24 months contractual period

1 Simultaneous call

No connection fee

Per second billing increment

Monthly invoice

19 CHF/mo Subscribe now

Business

24 months contractual period

Display another number

5 Simultaneous calls

No connection fee

Per second billing increment

Monthly invoice

19 CHF/mo Subscribe now

Prepaid subscription plans

3 months

19.50 CHF per month

Free calls to 54 countries

1 Simultaneous call

No connection fee

Per second billing increment

58.50 CHF Subscribe now

6 months

16.50 CHF per month

Free calls to 54 countries

1 Simultaneous call

No connection fee

Per second billing increment

99.00 CHF Subscribe now

12 months

15.50 CHF per month

Free calls to 54 countries

1 Simultaneous call

No connection fee

Per second billing increment

186.00 CHF Subscribe now

24 months

14.50 CHF per month

Free calls to 54 countries

1 Simultaneous call

No connection fee

Per second billing increment

348.00 CHF Subscribe now

Antifraud subscription plans

Prepaid 6 months

59 CHF per month

Fraud detection

Antifraud protection

Verify 1 million phone numbers

100 CHF connection fee

No contractual period

One-time billing

354 CHF Subscribe now

Prepaid 12 months

54 CHF per month

Fraud detection

Antifraud protection

Verify unlimited phone numbers

100 CHF connection fee

No contractual period

One-time billing

648 CHF Subscribe now

Monthly subscription

49 CHF per month

Fraud detection

Antifraud protection

Verify unlimited phone numbers

No connection fee

24-month contractual period

Monthly billing

49 CHF/mo Subscribe now

Join our service

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