Quick Review PDF:  
English  |  French  

Corporate VoIP sign-up form
Residential VoIP application.
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IP Telephony
Swiss VoIP by PhoneWorld- for worldwide and domestic calling (WLAN/WiFi*)

PhoneWorld converts your landlines and Mobile to VoIP.

Future technology

The change to IP telecommunication infrastructure is gradually taking place worldwide.

Switzerland is modernizing its telephone system by going all IP. Traditional landline (analog & ISDN) has reached the end of its service time. An all-IP system provides the technical basis for the digitization of communication within Switzerland and thus secures the country as a future-oriented, attractive business location.

Needless to say, there are no alternatives and customers have no options other than to update their current systems to allow Voice over IP (VoIP).

PhoneWorld VoIP — What's the Difference (PDF)


Note: PhoneWorld VoIP completely eliminates the cost of international roaming charges via the IPCall App.

No geographical boundary

The VoIP service area becomes virtualized without geographical limit. That is, the area code or country code is no longer bound to a specific location. For example, you could travel to Australia and use your Swiss VoIP number down-under. The calls from Australia become in fact domestic Swiss calls, even though you are physically in Australia.

Service mobility

Wherever the phone goes, the same services are available: call features, voicemail access, call logs, security features, service policy, etc. All you need is internet access.

Integration and collaboration with other applications

VoIP protocols run on the application layer and are able to integrate or collaborate with other applications such as e-mail, web browser, instant messenger and social-networking applications.  This integration and collaboration creates synergies and provides valuable services to end users. Typical examples are voicemail delivery via email, click-to-call service on a website, voice call button on an email, etc.

Phone portability

Legacy phone systems (analog & ISDN) assigned dedicated phone numbers which often had to be changed after moving. However, VoIP numbers provide total mobility. VoIP numbers go with you as long as you have an Internet connection. This is especially convenient and cost effective for international travellers using the IPCall Mobile app.

Number transfer (Porting)

VoIP customers can take their current analog/ISDN numbers along.  Conventional telephone numbers can be easily ported to the new VoIP technology. Therefore, there is no change in your current phone number vis-a-vis third parties.

Mobile numbers cannot be ported into the VoIP system. Only landline numbers can be ported (PhoneWorld, Swisscom, Sunrise, upc-cablecom).

Watching Television under VoIP

There is no need to subscribe to expensive TV subscription packages which is offered by carriers and cable operators.
The most cost efficient way to watch programs on your smart TV is:

Call the World with a Mobile App

PhoneWorld is providing an "IPCall Mobile" application which can be downloaded on your Swiss mobile phone (Swisscom, Sunrise, Salt, TalkTalk, etc.).  The new app provides you with the opportunity to call domestic and worldwide at the same low VoIP landline rates. Further, with a PhoneWorld VoIP connection the IPCall Mobile app allows you to make calls from anywhere in the world and benefit from local Swiss pricing.  There is no charge for VoIP calls between network members, whether using landline or mobile phones.


IPCall IPCall on an iPhone

All incoming calls to your landline phone will also be received on your mobile via the app. In a larger office environment this also means you have to link your DID number (direct inward dial) to your mobile phone number.

How to get a PhoneWorld IPCall app:

Your first step to get an IPCall app onto your smartphone

The mobile application for home, at the office or on the move:
With our IPCall application, any call to your landline will ring through to your mobile, wherever you are in the world. You can call at the calling rates of your landline. Your recipient will see your landline phone number when you call from the application.

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Specifically, how can one set up the IPCall application?

  1. Send an email with your name and VoIP phone number to ipcall@phoneworld.com
  2. In return, PhoneWorld will send you by email (or post) a QR code.
    QR = quick response code.
  3. Take your smartphone to GOOGLE and put Nexphone IP call app into the search (there are versions for Iphone and Android)
  4. Download the appropriate app on to your smartphone (IPCall app)
  5. Open the IPCall app and hold it against the QR Code on your PC screen
  6. The QR code will install automatically and configure your smartphone with your VoIP number (usually your landline VoIP number)

You are ready to make your first call.


  • A QR code can only be used once. Ask for a new code if needed. (VoIP number required)
  • When your mobile is outside a WLAN/WIFI area, and you are calling via the IPCall app, your call will automatically be directed to the 3G/4G networks.
  • Since data rates are substantially below normal voice rates, you may want to consider doing all mobile calls via this app.
  • Files or images cannot be sent with the IPCall app.

In summary, PhoneWorld’s IPCall service is essentially an extension of your home or office line. Make and receive calls from anywhere in the world using this app.

IP calling is the way to go. It is very cost effective. It eliminates all roaming charges. You can even record your conversations.


  general: connect@phoneworld.com
  technical: info@electrotechniques.ch

Application - Business

Corporate VoIP sign-up form

Authorization form to transfer and port your current landline to PhoneWorld VoIP...
(VoIP Application: English - French).
Please complete and sign this form, then scan and email to connect@phoneworld.com. Upon receipt, PhoneWorld will contact you to establish technical requirements (adaptation to VoIP).


VoIP for Private Residences/Home Offices

Residences and home offices are equally affected by the deactivation of analog/ISDN lines toward the end of 2017 i.e. a move to VoIP is required. PhoneWorld has the technology in place to switch your phone system to VoIP immediately. The new technology also allows PhoneWorld residential customers to make calls on their mobile phone (any smart phone) via an IPCall application as outlined above.

Frequently asked questions (FAQ)

How to connect a residential VoIP: English | French

Application - Residential/Home Offices

Corporate VoIP sign-up form

Authorization form to transfer and port your current landline to PhoneWorld VoIP.
Please complete and sign this form, then scan and email to connect@phoneworld.com. Upon receipt, PhoneWorld will contact you to establish technical requirements (adaptation to VoIP).


* Definition: WLAN means any wireless local area network no matter what technology is used. Wi-Fi is a type of WLAN that follows the IEEE 802.11 standards
  which most WLANs use today. That's why they are commonly used interchangeably. Wi-Fi as a name for the standard is a trademark of the Wi-Fi Alliance.