Prepaid and Talk Subscriptions
FAQ (frequently asked question) landline
How do I register for netvoip Prepaid?
To get a netvoip phone connection up and running as quickly as possible, all you need to do is register on the netvoip portal and order the required device (phone or adapter) from our shop. The whole process incl. shipping the phone takes about 5 working days. If you download the software client, you can even make calls with netvoip just a few minutes after registering.
Installing the phone is very simple and does not require any special computer or network knowledge, as our devices are delivered already pre-configured.
What does netvoip Prepaid cost?
There are no monthly fees for netvoip Prepaid. For netvoip Prepaid Plus the monthly fee (per phone number) is CHF 5.00.
Please note that you must have credit on the netvoip Prepaid account to make incoming and outgoing calls. No calls are possible with a credit of CHF 0.00.
Can I switch to netvoip with an analogue phone?
Analogue phones can also be used for netvoip if they are connected with an appropriate adapter. You can choose from a tested device in our shop.
Does netvoip work with any internet connection?
With netvoip you can make calls via any broadband internet connection.
How reliable is VoIP via netvoip?
With a stable internet connection, there is practically no difference in reliability compared to conventional analogue and ISDN telephony. Our systems meet the highest standards in terms of stability and quality.
Can I also use other VoIP-phone devices?
Yes – netvoip supports all common protocols. So you can simply use your current VoIP phone. All netvoip configuration details are visible in your user account.
Can netvoip do the same as my existing device?
netvoip supports all common functions of conventional landline connections such as fax, DTMF tones, CLIP, forwarding, redirection and much more.
Can I also use my ISDN device with netvoip?
If you have a VoIP adapter that supports ISDN devices, this can be used with netvoip. However, there is currently no hardware available in our shop that is compatible with ISDN devices.
Can several numbers be operated on one netvoip prepaid account?
Yes, with netvoip Prepaid you can manage up to 3 phone numbers per account. If you need more than 3 numbers, you can switch to the monthly subscription netvoip Talk, which offers additional features.
Can I merge several numbers from different netvoip prepaid accounts into one account?
If you have several accounts and would like to merge them into one account, our support team will be happy to help you.
Send us the user names of the accounts you want to merge via the contact form at https://netvoip.ch/en/kontakt/ and note which user name should function as the main account in the future. With netvoip Prepaid you can manage up to 3 phone numbers per account.
Can I port my existing phone number to netvoip?
Yes, of course you can port your phone number to netvoip. You can find the porting forms for number porting on netvoip.ch.
Can I also use netvoip abroad?
When you go travelling in the future, your phone connection will come with you. No matter where you are in the world: All you need to do is plug your computer or your netvoip adapter into a broadband connection and you’ll be making calls to Switzerland at local rates. Alternatively, you can also use your smartphone and a VoIP app to make calls with netvoip via a WLAN. Of course, you can also receive calls abroad without your call partner noticing that you are not in Switzerland but on the other side of the world.
Can I also reach emergency numbers and business numbers with netvoip?
Thanks to our own switching, you have advantages with netvoip that you have to do without with most other providers. Vital short numbers (e.g. 117, 118, 144) are just as accessible as business numbers (e.g. 0800, 0848, 0844).
I receive unwanted calls from numbers registered on netvoip. What can I do?
Unfortunately, it can happen that phone numbers of netvoip AG as well as our partners and customers are misused by so-called “spoofing”.
The term “Call ID Spoofing” refers to the method by which calls can be made under a calling number that is simulated for the called party. Most such calls with a stolen number originate from abroad. The calls are routed through various systems, in certain cases also through phone systems of private or business customers.
If you receive repeated calls through “Call ID Spoofing”, it is possible for you to file a criminal complaint with the competent criminal authorities or a civil complaint with the competent civil judge. The criminal complaint can be deposited at any police station.
What does SIP mean?
SIP stands for Session Initial Protocol and is the protocol most commonly used on the Internet for transmitting voice.
Can I listen to my voicemail via phone?
You can access your own voicemail directly from the VoIP device. Dial *98 to be redirected to the voicebox menu. When you call up the voicebox menu, you will first be asked for your Voicemail-PIN which is set when you activate your voicebox in the netvoip portal.
Which ports are used for netvoip?
Which codecs are supported with netvoip?
With netvoip, the following codecs are supported for calls to landlines and mobiles: G.711a-law, G.711 u-law
What is HD Voice?
HD Voice enables a very high quality voice quality, this is realised by means of the g.722 voice codec.
This codec can be used between netvoip customers, but not with callers from external networks, as these calls go via the classic phone network. The g.711 codec is used by default.
The selection of the voice codec is controlled by the telephone or software client of the caller. Depending on the end device or software, different preferred voice codecs can be selected. We refer you to the manufacturer’s support for this.
Is my VoIP connection secure?
Your passwords are not transmitted in plain text in the signalling but via encrypted hash. Calls via SIP / RTP are transmitted unencrypted. By splitting and transmitting the individual voice packets, eavesdropping on the conversation is very unlikely.
How can I block a phone number?
Numbers can be blocked in the call settings of the netvoip Prepaid Plus/Talk account under “Block incoming calls”.
Whole numbers and wildcards are possible. Swiss numbers are entered in the format 044xxx. International numbers must be entered with the country code, for example: 0049xxx. Anonymous calls cannot be blocked.
With the help of the asterisk symbol ( * ) entire number blocks can be barred. The entry 044xxx* blocks all calls beginning with 044xxx.
It is also possible to bar a call in the caller overview “All calls” by clicking the barring icon under Actions. The called number is automatically put on the blacklist.
How many numbers can be added to the blacklist?
The blacklist is limited to 30 entries.
Which countries does the “Calls outside Europe” barring set include?
If the option is activated, only calls to the following countries are possible:
Andorra, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France , Gibraltar, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom, Vatican City.
If the option “Calls abroad” is activated, only calls to Swiss numbers are possible.
How can I block advertising calls from call centres?
Since the amendment of the Telecommunications Act as of 01.01.2021, blocking these advertising calls has been a major issue. As a telecommunications service provider, we are obliged to operate a technically suitable solution to prevent these calls. However, each provider can currently decide for itself what this solution looks like. Currently, many of the large providers work with dynamic block lists, which are filled with new phone numbers based on evaluations of the call statistics. In principle, this is a sensible approach, but there are several problems.
1. There are different providers of these block lists. This means that no one can say exactly which numbers are blocked and which are not. This means that no one is really responsible.
2. If you end up on these block lists with your own number, there are no efficient processes for getting off the list. We have already had various major customers (including banks, insurance companies, etc.) whose main number was no longer accessible from Swisscom and Co. The problem could only be solved after several weeks.
3. Call centres are constantly using new number ranges. This leads to the fact that the block lists in fact only block reactively. Often, numbers are already no longer in use when they land on the block lists. Our strategy in this respect is that we currently only block very clear spamming. We do not currently want to use a list from a third-party provider because we generally assume that our customers (especially business customers) would rather receive one call too many than one call too few. If the burden of calls is so great, then replacing your telephone number will help at best. We hope that in the coming months and years there will be more efforts in the market to solve the problem globally.
Can I control several devices via one phone number?
Yes, this is possible. You can register up to 5 VoIP-devices per phone number
Can I also check my voicemail by phone?
Yes, the voicemail can be accessed by telephone by dialling *98. Incoming voice messages are also transmitted by email in MP3 format.
If you are using a Fritzbox, you can access your voicebox by dialling *#*98.
How can I top up credit for my netvoip prepaid?
You can top up your netvoip prepaid account quickly and easily using the following payment methods: Postfinance e-finance, PayPal, TWINT, credit card.
If you are unable to top up the credit via the payment methods, you can transfer the credit to our bank account via bank transfer. In order for us to be able to allocate the bank transfer, please provide us with the following details via the netvoip contact form:
– Name bank account holder
– Value date
– netvoip prepaid username
The payment will be credited to the netvoip Prepaid account within 5 working days.
Bank details netvoip AG, Alpenstrasse 1, CH-8803 Rüschlikon:
Raiffeisen Switzerland Genossenschaft, CH-9001 St. Gallen
IBAN: CH15 8080 8003 5471 3676 8
Can I also pay by monthly invoice?
In addition to our prepaid solution, you will also find VoIP offers on netvoip.ch which you can pay conveniently by monthly bill.
Why is older connection information no longer visible?
For data protection reasons, all connection information is deleted after 6 months.
Mobile phone provider incorrectly recognised! What should I do?
As with many providers, for technical reasons we can only identify mobile providers on the basis of the 076, 078 or 079 prefix. For example, if you have a 076 number from Sunrise and later switch to another provider, you will still be charged a Sunrise-Mobil tariff.
How long does it take after a postal payment (e-finance) for the amount to be booked to the netvoip account?
After a payment has been made via the post office (e-finance), it takes around 3 days for the payment to be processed and forwarded to us.
Why does my PayPal top-up only work with a credit card?
The prerequisite for a PayPal top-up is a validated Swiss PayPal account. This is because when you open a PayPal account, you have an initial sending limit. After reaching the sending limit or in certain cases when using your PayPal account, you will be asked to link and validate your credit card or become a verified PayPal member before you can send further payments with PayPal. This validation of your PayPal account is only possible with a credit card.
If you have previously topped up your PayPal account by bank transfer, we recommend that you switch to another payment method for netvoip. The following payment options are available:
– Postfinance E-Finance (Postcard)
Is there a limit for deposits via credit card or Paypal?
The limit per transaction is CHF 999.00.