Dialing Services
Wholesale Termination
Wholesale Origination
Virtual Calling Card
Frequently Asked Questions

VOIP Connection Services


Checkbox Dialing Services (CDS)

CDS provides interconnection services to VOIP-PSTN all over the world, no matter where you are if you have broadband Internet service you can be connected to CDS. Due to the agreements established by CDS with large telecom companies in different countries, we can offer great prices and an amazing voice quality in most of our destinations.

No matter how many calls you do, you can be someone who can make calls from time to time or can be a 500 seats call center, in all cases CDS is the best for you .

You can register for free and we will give you US $ 0.25 to check our quality. Register!

Wholesale Termination

CDS provides services for outgoing calls to companies or individuals who need a large amount of minutes per month. This product is a great option for cutting costs in your business, if you are going to consume more than 7,000 minutes per month, no matter the destination. Then contact us to discuss your needs in a personalized way.

Wholesale Termination applies to all routes USA, Canada and AZ.

Wholesale Origination

CDS provides Incoming call services to companies or individuals who need a large amount of minutes per month. This product is a great option for cutting costs in your business, CDS can provide local numbers in several countries and address to your CDS account and you can answer your phone wherever you are.

CDS provides incoming numbers, and we emphasize the excellent voice quality and stability of the numbers we provide. We currently have excellent routes for USA and Canada with local numbers and numbers of any state as well Toll Free numbers.

CDS Origination only applies from 5000 minutes per month.

Virtual Calling Card

Virtual Calling Card is a service of CDS in which you can make your phone calls from a land line or mobile phone anywhere in the world. You just have to register your phone number and then call 1-866-254-9666 and enter the destination number.

Frequently Asked Questions (CDS)

How I know CDS is what I need?

Please register! for a free test account you’ll be able to make your calls anywhere in the world, then you’ll decide if CDS is what you are looking for.

What I need to be connected to CDS?

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

How many countries can CDS terminate calls?

Worldwide, although we are known in having the most competitive rates to USA and Canada US$ 0.011

Can I place my own caller ID?

Yes you can, only one Caller ID supported each trunk

Is your service strictly prepay?

Yes. Of course, 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

What I have to pay to open an account at CDS?

Minimum deposits of US $ 25.00 using PayPal.
For bank Wire: minimum is US$ 200 + wire fee.
For more information about paying with bank wire contact us at billing@checkbox.cc

What protocols CDS supports VOIP?

SIP and IAX2

What kind of codec does CDS support ?

G729, G.711, GSM, g723

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:

username = 89498665320
type = friend
secret = 96552300157
host = CDS_IP
fromuser = 89498665320
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?

For most of our destinations is 6 seconds increments and 8 seconds first period which means we are one of the carriers that do less rounding.

Can I set my own dialer or dialing application o terminate call with CDS?

Yes, you can configure your own dialer any dialing application or PBX that supports SIP and IAX2.


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