DUAL Talk - Internet Telephony Service Provider
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DUAL Talk - Internet Telephony Service Provider
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Accessing DUAL Talk

Configuration details for Nokia mobile phones for accessing DUAL Talk VoIP and making SIP calls.

  • Calling rates

    We offer three tariff and routing plans:

    - DUAL Talk Gold
    - DUAL Talk Silver
    - DUAL Talk LCR

    You can choose your tariff depending on your traffic profile and whether your priorities lie with low rates or high voice quality.

    See more >>

  • Discount scheme

    We reward higher spending customers with discounts of between 5% and 19% determined by their spending levels.

    More information >>

  • Wholesale rates

    Reseller and wholesale customers with high volume can use our "DUAL Talk LCR" or "DUAL Talk Silver" tariffs and are eligible for discounts of up to 19% depending on volume.

    See more >>

  • DUAL Softswitch

    This calling service and its online control panels are powered by DUAL Softswitch.

    More information >>

SIP calls from Nokias

These instructions relate to Nokia mobile phones running Symbian S60 3rd Edition (including Feature Pack 1).  The following telephones have built in SIP clients and are supported:

Nokia E51, Nokia E60, Nokia E61, Nokia E61i, Nokia E63, Nokia E65, Nokia E66, Nokia E70, Nokia E71, Nokia E90 Communicator, Nokia N80 Internet Edition, Nokia N81 8GB, Nokia N82, Nokia N95 8GB.

Other Nokia mobiles >>

Some Nokia cell phones include a built in SIP client for making VoIP calls.  The SIP client is not an add-in software, but a completely integrated solution for making VoIP calls.  The quality of this SIP client is excellent, and it can be used directly from the phone's contact list without starting up a third party application.

There are two stages to setting up DUAL Talk SIP calling on your Nokia phone:

  1. Defining the DUAL Talk SIP settings
  2. Creating a SIP Profile

Creating the SIP settings

Select the SIP settings area on your phone.  Usually, this is located under Tools | Settings | Connections | SIP settings.  Use the Options key to select New SIP Profile | Use default profile.

SIP settings on Nokia mobiles

Most of the settings on this page can be left at their default values, but the following settings should be made:

  • Optionally, set a Profile name.  In this case, the name has been set to DUAL Talk.
  • Set an access point.  This is very important, and tells your phone which internet connection to use for SIP calls.
  • Set Public user name to [DUAL Talk account number]@sip.dualtalk.com.  So, if your DUAL Talk account number is 100001, set this field to 100001@sip.dualtalk.com.
  • Scroll down to Registrar server and select this entry.  This will open a new page, where the following settings should be made:
    • Registrar server address = sip.dualtalk.com
    • Realm = sip.dualtalk.com
    • User name = [Your DUAL Talk account number]
    • Password = [Your DUAL Talk password]
SIP settings on Nokia cell phones SIP settings on Nokia SIP clients

Press the Back key twice, and you should see a list of defined SIP settings.   DUAL Talk should be shown on the list as "Not registered", because the registration will take place before the first call attempt.

Nokia VoIP SIP settings

Creating the SIP profile

Press the Back key to return to the Connection menu and select Internet tel., which is usually below SIP settings.

Click on the Options key and select New Profile.  A new profile may be created immediately, but, if more than one SIP setting exists on your phone, then you will be prompted to choose a SIP setting to associate with this new profile.  In this case, select the xxxxxx@sip.dualtalk.com setting.  Change the Name setting to DUAL Talk.

SIP profiles on Nokia mobile phones SIP profiles on Nokia cellphones

Press the Back key and return to the home screen.  Your Nokia cellphone is now configured to make SIP calls through DUAL Talk.

Making calls

Having configured your Nokia mobile phone for VoIP calling through DUAL Talk, you are ready to make your first call.  We have a test facility that you can reach by calling 123.  To make a call, press 123 and then the Options key.   From the menu, choose Internet call.  On some phones, the selection will be Call | Internet call.  On phones with a qwerty keypad (for example, the Nokia E71), you can force a SIP call by adding @ to the end of the number, in which case, you should call 123@ followed by the green call button.  If the configuration was correct, you should hear the message "This is the Internet Telephone calling service.  Please contact your service provider to activate your account".

As this is the first Nokia SIP call that you have made since you switched on the telephone, you will be prompted to register with the internet telephone service.  Pressing the Yes key will cause the internet connection to be established and registration with DUAL Talk to take place.  This will take a few seconds.  After this, the call should connect.

Making a SIP call from a Nokia mobile phone Making a SIP call from a Nokia cellphone

You can also make calls from your contacts list by selecting the contact and pressing the Options key.  Then choose Call | Internet call.

Making a SIP call from a Nokia cell phone

Common questions about Nokia VoIP

My phone is not on the list of support Nokia mobiles.  What should I do?

If your phone is not listed, then it does not include a SIP client and integrated VoIP is not available.  VoIP calling may still be possible with these phones, and we suggest you investigate Nimbuzz as a possible solution, because Nimbuzz allows you to configure other SIP providers for calling with their software.

Can SIP calls be made through 3G or GPRS?

We recommend making calls through WLAN (WiFi).  3G (UMTS) and GPRS may work, but your experience will vary depending on the quality of the internet service provided by telephone provider.  Also, data sent through a 3G or GPRS connection may be chargeable.  All of the phones listed are capable of VoIP over 3G/GPRS except the Nokia 6300i, Nokia 6260 Slide, Nokia C3-01 and Nokia X3-02.

Which codec does the Nokia SIP client support?

With DUAL Talk, the Nokia SIP client will make calls using the G.711 codec.  This provides the best quality, but can be bandwidth intensive.  If you prefer, we can set your account to use the lower bandwidth G.729 codec.  Please contact our support team to have this feature set on your account.

Can the Nokia phone be configured to always register with DUAL Talk?

Yes, you can set this on the SIP settings page.  Change Registration from When needed to Always on.  You may find your batter draining quicker with this option set.

Do I have to dial 00 for all calls, including calls to my own country?

No.  You can set your own country code at My DUAL Talk.  This can help to match DUAL Talk with your contacts list format.

Can I set all calls to use DUAL Talk by default?

Usually, yes.  Please refer to your Nokia user guide.

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Last modified: 22 November 2011

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