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Blocking incoming and outgoing calls

Blocking incoming and outgoing calls

Block fixed network calls

How to block advertising calls etc.

Swisscom offers various supplementary services to counter advertising and other unsolicited calls.

Click here for instructions on how to block calls on your mobile

 

Recommended security measures

Callfilter: block incoming calls

The call filter automatically blocks incoming calls based on a global, continuously updated list to protect you from advertising and other unsolicited calls. You can manage this service online in your Customer Center.



Please note:

100% protection from nuisance calls cannot be guaranteed.

All new fixed network telephony (IP) subscribers (all current Swisscom telephony products) can use the filter. Customers with conventional (analogue) fixed network telephony cannot use the function.

 


Callfilter settings


The following options are available:


1

Only reject spam calls

2

Reject calls from suppressed numbers (anonymous)
3 Reject calls from suppressed (anonymous) and unavailable numbers
4 Reject all calls in 1-3
5

Manually block or enable individual numbers: you can block further number not blocked by the call filter or enable individual numbers.

You can create lists manually or directly add numbers from your list of incoming calls in the Customer Center.


Alternatively you can block the last call you received directly on your phone by entering  .

 



Which calls are blocked by the Callfilter and which are not?

The Callfilter cannot analyse the content of calls or recognise the relationship between the caller and the person called. The Callfilter can therefore only apply general rules, working as efficiently as its limits allow.

Swisscom takes measures to continuously improve the quality of the Callfilter. If any unwanted calls slip through the net, the customer can block the number manually in their personal list of blocked numbers. They can do this online in the Customer Center or by dialling *00# straight after the call.


The following numbers are usually blocked The Callfilter does not usually block the following numbers
  • Callers who do not respect the requisite level of transparency (purpose of call, company name, phone number, etc. not displayed)
  • Callers who ignore the asterisk system in directories
  • Callers who call at inappropriate hours (before 8 am or after 8:30 pm on weekdays, before 9 am or after 4 pm on Saturdays, or on Sundays and public holidays).
  • Callers who call a customer more than once within a day
  • Aggressive marketing calls (e.g. dubious sales tactics)
  • Calls from numbers with an invalid format
  • Numbers that many Swisscom customers have placed on their individual blacklists
  • Numbers that many customers have designated as unwanted
  • Calls that adhere to the code of conduct of the industry association for call centres (CallNet.ch), including respect for the asterisk system and no calls at inappropriate hours.
  • Calls from serious survey institutes which adhere to industry standards and are not advertising calls
  • Calls from official bodies such as the Federal Statistical Office
  • Calls from firms which contact their customers using different numbers than those used for advertising calls

Are there any other ways I protect myself from unsolicited advertising calls?

– You can add an asterisk (*) to your entry in the phone book at local.ch. This indicates that you do not want to receive advertising calls and this will be respected by
   legitimate call centres.

– If your number is not listed in the phone book, but you would still like to protect it, you can have it put on the telephone block list of CallNet.ch – this has the same
   function as the asterisk entry in the phone book.

– You can have your address entered on the Robinson list for postal advertising and door-to-door selling.

– If you are called by a survey institute (they do not fall under the asterisk entry advertising block), you can apply to them directly to put your number on a block list
   so that you are not called again.


Block outgoing calls

Prevent chargeable calls (value added services) from being made from your landline telephone.  You can block outgoing calls in your Customer Center:



The following options are available:


1 Block no numbers
2 Block all numbers (no calls possible)
3 Block 0906 numbers (adult entertainment)
4 Block all 090 numbers
5 Block Carrier Selection (call by call), which allows you to make calls using another telephone provider
6 Block international connections, 090 numbers & Carrier Selection

Emergency number 144

If you block 0900 numbers, emergency calls on 0900 numbers are blocked as well. Regardless of call barring, however, the emergency number 144 is always available. General service and emergency numbers can be made even when barring is activated.





Block incoming calls

Advertising block activated (* entry in telephone book)

Besides the supplementary services offered by Swisscom as detailed above, you can have an advertising block (asterisk(*) sign) entered in your telephone book. Respectable advertisers will respect this advertising block.

Set your entry online at local.ch or have it set via 0800 86 80 86 (free service)

Block suppressed numbers 

You can block all withheld numbers.

Call *99# to do so. If the service is enabled, callers with withheld numbers can no longer reach you.

You can unblock the calls by dialling #99#.

Individual numbers can only be blocked on the new landline telephones (IP). You can find information about this here.


Block outgoing calls

Prevent chargeable calls (value added services) being made from your landline telephone. Swisscom offers 4 different call barring packages to do this. Set up a package, and you can enable and disable it with the use of a PIN code.

Set 1 Bar all connections
Set 2 Bar all international connections (including satellite telephones),  Carrier Selection, 0900 numbers, 0901 numbers, and 0906 numbers. The automatic alarm clock service can still be used.  
Set 3 Bar 0906 numbers
Set 4 Bar 0900, 0901, and 0906 numbers. The automatic alarm clock service cannot be used

Setting up a numerical code

You need a numerical code in order to enable and disable your call barring package. When a new package is set up, the code is composed of the last four digits of your telephone number. For security reasons you should however change this code.

To do this:

  • Lift the receiver.
  • Press the * button.
  • Enter 17 and the last four digits of your telephone number.
  • Press the * button and enter the new numerical code.
  • Press the * button and confirm the new code.
  • Press the # button.
  • Wait for confirmation that "your password has been changed".
  • Replace the receiver.

How to deactivate blocking on your phone

Enable

 

Disable

  1. Pick up the receiver.
  2. Press the # button.
  3. Enter 33 and your PIN code.
  4. Press the # button.
  5. Wait for confirmation that "the service is disabled".
  6. Replace the receiver.
 
  1. Lift the receiver
  2. Press the * button.
  3. Enter 33 and your PIN code.
  4. Press the # button.
  5. Wait for confirmation that "the service is enabled".
  6. Replace the receiver.

Emergency number

If you block 0900 numbers, emergency calls on 0900 numbers are blocked as well. Regardless of call barring, however, the emergency number 144 is always available.

General service and emergency numbers can be made even when barring is activated.