Frequently Asked Questions

General

How does it work?
First register by filling out the application form. After successful registration, you can setup your SIP device(s) for calls via the Checkbox network.
It is possible to setup multiple SIP devices with 1 account. It is not possible for a customer to create multiple accounts.

Can I test your service?
After you received your login data, you can make some free calls with a value of $1 to any destination to test our service before making a prepayment.

How to setup my equipment/what are the settings to make a connection?

This information will be sent via email after you register.

Our system is compatible with all standard SIP equipment. If you have problems setting up the service, please consult the instruction manual of your hardware.

I can’t connect to your SIP server by using username & Password. Can I connect by using fixed IP addresses?
Yes, you can give us your IP address/ address’s for authentication.

Important! If you are using a hosted VoiP softswitch provider like eq. Kayote Networks (etc), make sure you are ONLY using IP addresses which are uniquely assigned to your account (check this with you provider). This is to prevent that other users of the same VoiP softswitch provider are able to use your balance.

I have problems configuring my own SIP device for calling with Checkbox, what to do now?
Please refer to the instruction manual of your SIP device on how to setup your SIP device.

Which Codecs do you support?
G.711 (64kbps)

G.729 (8 kbps)

G.723 (5.3 & 6.3 kbps)

Does Checkbox also support H.323?
Yes, we do.
Please send us your IP-addresses for authentication.

How many simultaneous calls can I setup?
Checkbox does not limit the number of simultaneous calls. The only limit is the bandwidth of your local internet link.

I haven’t received an email confirmation with my customer login data?
It is possible that you did not receive our confirmation email due to spam filters. In that case, your registration may still have been successful. If you do not receive an Email from our customer service within 1 working day after registration, please send an Email by click on ‘Contact Us’ at the bottom of the page and ask for the status of your registration.

How can I access my recent calls/CDR’S online?
Log in with your credentials to http://SERVER_IP/Portal.  Please, substitute SERVER_IP for the IP address where your account is located.

How do I get a downloadable version of your current rateslists & country codes?
After logging in select ‘Rates’ from the menu. The variety of rate lists can be downloaded.

Can one customer create multiple accounts?
Checkbox does not permit multiple accounts per registered user.

How long are your rates valid?
All VoiP Ratelists are normally valid for 1 month.
Rate changes will be announced by Email. Rates can be subject to changes without prior notice.

How do you inform me about rate changes?
Clients are informed about rate changes via Email, all current rate lists are available after logging in.

When do call charges take effect?
Call charges take effect once you are connected to the telephone number you have dialed i.e once the call has been answered.
If there is no answer or the line is engaged you will not be charged for the call.

What is the minimum topup amount?
We require a minimum Payment of $500,-.
No monthly payment required . Take your time to use this credit and top up again if you run out of credit.

Which payment methods does Checkbox offer?
Available payment method is Bank transfer, Paypal, EMS, Western Union, Moneybookers. 

How fast will my payment be processed?
That depends on the payment option you use.
Paypal payments are normally processed within 1 working day.
Bank Transfers might take up to 7 working days, depending on your bank & region.

As soon as we receive your payment, it is processed automatically and your account will be credited instantly.
Please note that we cannot influence the transaction time before your payment reaches us.
And please always make sure to include the Transaction Reference Number/customer number when you transfer a payment! Otherwise your payment cannot be allocated automatically and processing time will be subject to delays.

What is important when making a bank transfer?
You should take extra care in filling out the Transaction Reference Number on the transaction form! This number is used for automatic processing.
Some banks do not automatically send us the Transaction Reference Number with the transaction, even if it is mentioned on the bank transfer form.
So please make sure that your bank includes the Transaction Reference Number in the payment description. If the Transaction Reference Number is incorrect or missing, the order can not be processed and your account will not be credited!

As soon as we received your payment, it will be processed. Processing of bank transfer payments may take up to 7 working days. We will update your credit as soon as your bank transfer has arrived in our bank account. Please do not combine payments for several orders in one bank transfer, unless advised.

I have lost my username and/or password. What should I do?
Visit http://www.checkbox.cc/secure/userlogin.aspx and click on ‘forgot your password?’.

I am experiencing connection problems. Where do I report these and what are you doing about it?
Should you experience connection problems, please report via the 'Contact Us' page.
Please be as specific as possible regarding date & time, destination and a description of the problem. Every report is immediately forwarded to our engineers, who will take measures as soon as possible. Please note that we do not respond to every single report. But bad connections are bad for business, so you can be sure that any connection problem is handled with high priority.

I have connection problems with some mobile destinations. Can you fix this?
You can solve the problem by programming your system to send out your CLI. Otherwise the calls are dropped by some carriers.
Please note, that the call information you fill in, is merely numerical. (Example: for setting a CLI from Spain, don’t fill in “+34XXX”, but “0034XXX”)
In case that this does not help, please report back to us.

Do you offer special rates for large volumes?
Yes we do, please send an e-mail to support@checkbox.cc with your request and anticipated volumes.

Do you support RFC 2833?
Yes we do.

What I need to be connected to Checkbox?

Only an IP Softphone or Phone like (Bria, Eyebeam, xlite, sjphone, cisco 7940)

How many countries can Checkbox terminate calls?
Worldwide.

Can I place my own caller ID?
Yes you can, only one Caller ID supported each trunk

Is your service strictly prepay?
Yes. For large scale customers we can negotiate convenient terms with and extend credit.

Is there a minimum monthly commitment?
No, there is no time commitment whatsoever. Only wholesale customer to keep their prices.

Can I cancel anytime?
Yes, you can cancel at any time

How can I configure my account?
After you register on our web site you will need to activate your account by clicking the link in the activation email you received. Then search for SIP / IAX INFO to see or copy and paste the configuration in your device.
An example of the configuration would be as follows:

Asterisk configuration:

username =  12345678901
type = friend
secret =  SECRET
host = CDS_IP
fromuser = 12345678901
context = from-trunk; use proper context
allow = g729; suporting ulaw, alaw, gsm, g723.1, G726, g729a
trustrpid = yes
sendrpid = yes
canreinvite = no

How do you bill for services?
International 1/1, USA 6/6 and Mexico 60/60

Can I set my own dialer or dialing application o terminate call with Checkbox?
Yes, you can configure your own dialer any dialing application or PBX that supports SIP and IAX2.