• Windows
• Apple OSX
• Linux
• Chrome OS

No. These devices are not compatible with ipDTL. Also these devices do not have ethernet or USB connectors.

No. These devices are not compatible with ipDTL.

A small minority of devices are not compatible with Chrome. On certain devices only input channels 1 and 2 will be routed to ipDTL.

 Audio Interfaces

Make sure you are sending a cleanfeed.

Most professional audio interfaces use USB to connect to the computer, but many other types of sound device can also be selected in ipDTL.

Your choice of microphone and/or sound interface is crucial to the audio quality of ipDTL. The on-board sound-card in most PCs will produce unwanted noise.

Probably. ipDTL can run entirely through TCP port 443. Particularly aggressive firewalls or anti-virus software can cause a problem.

Mobile broadband is shared with people around you. There’s no way to get guaranteed bandwidth and you never know when your fast connection will drop-off / deteriorate. Using mobile broadband for ipDTL will give unpredictable results. If possible, find a wired connection.

ipDTL will try to establish a ‘peer-to-peer’ connection between two computers. If NAT configuration prevents this, audio streams are sent via one of our relay servers in the cloud.

TCP outbound port 443 and UDP ports 16834 to 32768 and 49152 to 65535. (more…)

1. Go to System Preferences.
2. Select ‘Sound’.
3. Choose ‘Input’ and then select the correct device from the list.
4. Adjust the slider as required.

The level to and from some audio devices can be far too high by default - your computer is probably set at 100%.

1. In Windows Control Panel, search for ‘Manage Audio Devices’.
2. In the ‘Recording’ tab, double-click the appropriate device.
3. In the ‘Levels’ tab, adjust the slider down to a level where the audio does not distort. This can be as low as ’3′.
4. Adjust the slider as required.

The level to and from some audio devices can be far too high by default - your computer is probably set at 100%.

We advise setting all audio software and hardware to 48000Hz, 16bit to avoid any conflict with ipDTL.

'CleanFeed' is an output from a sound mixing desk which includes the audio from all input channels except for the equipment you are sending it to. It is important not to send a contributor's own voice back to their headphones as there will be a slight delay, but they still need to hear other input channels and talkback.

This will happen if the other user does not send a ‘clean-feed’ from their studio.

Mix and record the audio in ipDTL’s virtual mixer. WAV recording requires 64-bit OS with minimum 4GB memory. Consider recording a backup by other means. ...or...

• Use a different computer for recording and connect via an audio mixer.
• Use software such as Soundflower or Audio Hijack Pro.
• Record the output from your mixer and send the 'clean feed' or talkback to ipDTL via a different audio interface.

To connect with another ipDTL subscriber, they must first link your Login ID to their account. You can then select their account from the drop-down list. You may need to reload your page first.

Yes. Add additional destinations by simply clicking their name to connect. You can balance levels in the virtual mixer as each destination is assigned to its own channel.

No. ipDTL allocates ISDN numbers for incoming calls on demand.

To dial a basic G722 ISDN quickly: Click the Dialpad icon. Enter the "+" symbol, followed by country code, then the number with any leading zeros omitted. Now click the Connect ISDN button.

Most ISDN calls require at least some knowledge about what equipment is at the other end. (more…)

Log into ipDTL and click on ‘Admin’ at the bottom of the page.

Adding extra features is easy. Just log into ipDTL and click ‘Admin’ in the footer, followed by ‘Manage Account’.

1. Log into ipDTL and click on ‘Admin’ at the bottom of the page.
2. Click on ‘Manage Account’.
3. Click on ‘Cancel this subscription’.

Note: You can also unsubscribe by logging into your PayPal account (Profile > My Money > My Pre-approved payments).