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 or mobile after having downloaded one of our free softwares.
Communications costs proposed by 4z.com are without competition with traditional operators. 4z.com offers you free telephone calls for many countries landlines and mobiles in Europe and USA.
Every 4z.com’s customer receives a real swiss telephone number (ex. 021 550 11 12).
Your telephone number (for example 021 550 11 12) follows you everywhere and you remain reachable at any time and your calls are always invoiced with the local rates. If you take along your 4z.com number 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.
We offer per second invoicing, 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.
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
Free calls to 54 countries
3 Simultaneous calls
No contractual period
No connection fee
Per second billing increment
No invoice
Free calls to 54 countries
24 months contractual period
1 Simultaneous call
No connection fee
Per second billing increment
Monthly invoice
24 months contractual period
Display another number
5 Simultaneous calls
No connection fee
Per second billing increment
Monthly invoice
19.50 CHF per month
Free calls to 54 countries
1 Simultaneous call
No connection fee
Per second billing increment
16.50 CHF per month
Free calls to 54 countries
1 Simultaneous call
No connection fee
Per second billing increment
15.50 CHF per month
Free calls to 54 countries
1 Simultaneous call
No connection fee
Per second billing increment
14.50 CHF per month
Free calls to 54 countries
1 Simultaneous call
No connection fee
Per second billing increment
59 CHF per month
Fraud detection
Antifraud protection
Verify 1 million phone numbers
100 CHF connection fee
No contractual period
One-time billing
54 CHF per month
Fraud detection
Antifraud protection
Verify unlimited phone numbers
100 CHF connection fee
No contractual period
One-time billing
49 CHF per month
Fraud detection
Antifraud protection
Verify unlimited phone numbers
No connection fee
24-month contractual period
Monthly billing