| What do I need to start using Callcentric? |
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If after looking at our How It Works page you are still unsure what you need to do to actually use our services the please read the following:
*If you are trying to use the Callcentric service from countries which specifically block VoIP/SIP, such as the UAE, then you may not be able to use our services. You may still contact us for further information regarding these specific countries however please read the information below before doing so.
1 - First make sure that you have a connection which is not being blocked by your ISP or network, with the necessary bandwidth that is stable enough for VoIP.
2 - You will also want to make sure that you have selected SIP 2.0 compatible hardware or software. We support many different devices and software so you may choose to use your existing SIP 2.0 software or unlocked hardware with our services.
Once you have done the above simply signup for an account and then follow this guide to assist you with testing our services.
*If after running the Visualware test you receive a message stating that your SIP ports are blocked and you are not in a country known for blocking SIP/VoIP you can easily open a trouble ticket on your account for further help. |
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| Does Callcentric support DTMF? |
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Yes Callcentric does support DTMF.
We support both In-Band DTMF and Out of Band signaling through the industry standard RFC2833 specification.
We recommend sending DTMF through the RFC2833 standard since it provides a more reliable way of transmitting DTMF signals compared to In-Band where compression, especially with highly compressed codecs such as G.729, in combination with poor connection quality can distort DTMF signals and make them unrecognizable.
If you choose to use the In-Band DTMF signaling method and experience problems with sending DTMF tones you can try to solve this by choosing G.711 as your preferred/default codec. This way your signals will be sent but won't be as compressed as when they are sent with G.729, or more highly compressed codecs.
If you are not able to choose RFC2833 standard as your DTMF type in your device, you may also be able to select AVT which is the name used for RFC2833 on some devices. You may also try setting your DTMF signaling type to Auto; this will allow your UA to choose the most suitable signaling type.
Callcentric does not support SIP-Info at this time as a method of transporting DTMF signals.
Here is a short list which explains Callcentric DTMF support for SIP communications:
1 - In-Band: Requires a stable connection and works best with a less compressed codec such as G.711. An unstable connection can still affect DTMF signaling however.
2 - RFC2833/Out of band: Works with any codec, as long as your connection does not suffer from high packet loss/ poor quality
3 - SIP-Info: Not supported at this time
If you still aren't able to send DTMF tones you may open a trouble ticket by logging into your account to contact us. |
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| How do I verify my non Callcentric Caller ID? |
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*IMPORTANT NOTE: We do not support using third-party toll free numbers for outbound CallerID purposes on calls placed via our service.
Verifying your non Callcentric Caller ID is simple. To do so, please follow the instructions below:
To verify a US/Canada Number: Open a Trouble Ticket on your Callcentric account asking to get your US/Canada number(s) verified.
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To verify an International Number: - Please place a call, with your caller ID unblocked, from each of the International lines/numbers you would like to use as an outbound caller ID to 1-866-346-0222. You will hear an error message then hang up.
- Open a Trouble Ticket on your Callcentric account asking to get your International Number(s) verified.
Include within the trouble ticket the International Numbers you would like added on your account, and the approximate date, time, and time zone you placed the verification calls to the Toll Free number listed above. Once we verify that we have received your calls for the listed numbers we will add those numbers as verified numbers on your account and update your ticket.
Once we have properly verified your numbers and updated you, you can then begin using these caller IDs by setting your desired caller ID in your preferences, or by sending them out selectively. |
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| How do I take a screenshot? |
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Screenshots are normally requested by Callcentric support for issues such as troubleshooting configuration problems or for LNP documentation. Depending on the operating system you are using there may be multiple ways to take a screenshot. Listed below are instructions for Windows and OSX user:
*Most users using Linux/Unix may have a plethora of options available to them which is why we do not list any single option or options. It may be simpler to lookup the instructions for the specific Linux/Unix based environment you are using.
We highly recommend saving your image in a more commonly used format such as .jpg, .jpeg or .png. Other less commonly used/supported formats, such as .gif, .tiff, .bmp and others, may be used, but may not be as supported or compatible in all situations.
Windows
in most Windows versions you would simply press the Prnt Scrn key, usually located at the top right of your keyboard. You would then paste the image into an image editing program, such as Microsoft Paint or Adobe Photoshop. Depending on what program you are using you may further edit the image and then save it in one of the recommended formats.
Windows Vista and Windows 7 also have a nifty tool called the Snipping Tool. This can also be used to Take screenshots. This is usually located in the start menu under Accessories->Snipping Tool
Mac OSX
NOTE: Pictures are automatically saved to your Desktop by default.
OSX has a variety of very useful methods for taking screenshots. One of them being the Grab utility, in the Utilities folder. There are also keyboard shortcuts which you may see listed below:
Taking a screenshot of the entire screen
- Cmd+Shift+3 Will take a picture of the entire screen and save it
- Cmd+Control+Shift+3 Will take a picture of the entire screen which you can then paste into an editing program
Taking screenshots of a selected area
- Cmd+Shift+4 Will allow you to take a picture of the selected area and save it
- Cmd+Control+Shift+4 Will allow you to take a picture of the selected area and then paste it into an editing program
Taking a screenshot of a window
- Cmd+Shift+4+Spacebar Will allow you to take a screenshot of a specific window, icon...etc and save it
- Cmd+Control+Shift+4+Spacebar Will allow you to take a screenshot of a specific window, icon...etc and paste it into a program
If you have any further questions or problems you may contact us for further assistance. |
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| I received an error message and a number. What does this mean? |
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When placing or receiving calls you, or the caller, may sometimes receive an error message, along with an error code, which will inform you of a problem. Depending on the error message you may easily be able to resolve the issue. Otherwise you may need to contact support for further assistance.
You may view the list below which shows the most frequently encountered error messages at Callcentric:
Code: 1001
Message: The person that you are calling is currently unavailable. Please try your call again later. Message one-thousand one.
Solution: Enable Call Waiting in your preferences. You may also add voicemail to your account to have other callers go to voicemail while you are on the line.
Code: 1002
Message: The person you are calling is currently unavailable. Please try your call again later. Message one-thousand two.
Solution: Turn off Do Not Disturb in your preferences. You may also want to check your call treatments to make sure you are not forwarding incoming calls to an error message. You may also add voicemail to your account to avoid this message and have incoming calls go to voicemail instead.
Code: 1004
Message: The person you are trying to reach is currently unavailable. Please try your call again later. Message one-thousand four.
Solution: Incoming calls may not be connecting properly to your UA (user agent) . If you believe your UA is the problem please open a trouble ticket. You may also add voicemail to your account at anytime to have all incoming calls go to voicemail.
Code: 1005
Message: The number you have dialed is invalid or cannot be called using the IP Freedom Rate Plan. Message one-thousand five.
Solution: Please add an outgoing service to your account if you wished to place calls to PSTN (Mobile/Landline numbers)
Code: 1007
Message: The person that you are calling is currently unavailable. Please try your call again later. Message one-thousand seven.
Solution: Check your balance to make sure that you have enough funds for the location you are forwarding to, or for your per minute services if you are using a Pay Per Minute or Toll free number.
If you encounter any other errors which are not clear then you may contact us for further assistance. |
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| Does Callcentric restrict calling to any numbers or locations? |
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Certain numbers will not be available from Callcentric and will result in either an error message or failed call. These numbers are blocked mainly for cost or infrastructure reasons. Below is a list of numbers which will not be available from Callcentric.
There are no changes which can be made to allow for calling to the numbers below.
NOTE: If you are experiencing issues with another number not in the ranges listed below please open a trouble ticket relating to this number so that we may investigate and resolve the problem.
X11 Informational Services, EXCLUDING 911
211, 311, 511, 611, 711, 811
911 WILL work if you have added a paid service and have setup 911 for your account.
555 Special services: US/Canada
North America numbers dialed in the format 1-NPA-555-XXXX, such as 1-212-555-1212, will not work.
Special Services: US/Canada
The numbers below are all special services numbers and will not be available from Callcentric.
1-456-XXX-XXXX
1-500-XXX-XXXX
1-533-XXX-XXXX
1-600-XXX-XXXX
1-700-XXX-XXXX
1-710-XXX-XXXX
1-900-XXX-XXXX
Emergency Services: International
International emergency numbers are blocked because currently there is no support for emergency services outside of the US and Canada. We do not have any plans for offering international emergency services at this time.
100, 101, 102, 112, 999
International Toll free
Toll free numbers beginning with the following prefixes will not be accessible.
00-800-XN
011-800-XN
If you are dialing a North American toll free number please use 1-8XX-XXX-XXXX.
iNum
This Global Dial Code Initiative (+883 5100), that was started by Voxbone in 2008, is no longer operational. The Project ended in 2020. Numbers starting with the following prefixes will not complete:
0118835100XXXXXXXX
008835100XXXXXXXX
+8835100XXXXXXXX
If you still have more questions regarding blocked numbers please contact us for further assistance.. |
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| Which domains support only SRV records? |
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Callcentric supports DNS A and SRV records for domain lookup on SIP domains. Some SIP domains only support SRV records. As such these records will not be visible with an A record lookup.
The following domains are ONLY visible with devices which support SRV records:
srv.callcentric.com
bypass.callcentric.com
If you have more questions please open a trouble ticket on your account. |
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