World Have Your Say is about taking part in a global conversation, and we want to make it as easy as possible to contribute and comment.
Call us 44 20 70 83 72 72, or if you have a mobile phone text us on +44 77 86 100 100.
Or e-mail us at firstname.lastname@example.org, and you can always comment here on the website, bbcnews.com/worldhaveyoursay.
Sending your audio to World Have Your Say
What happens if you want to comment but aren't available when we're on air?
Then record a short comment and send it to us via email. Give your email a subject that tells us what you are commenting on.
In the email, please tell us you who are and where you are from, and Include a sentence summarising your comments.
Please make sure your file format is MPEG or MP3, and less than 2MB. For best audio quality your encoding rate should be: 96 Kbps, 44100 Hz, 16-bit, Mono.
We can handle it in a range for formats, but this is easiest for us. And MP3 are nice and small. Most email systems, including ours, don't like files much larger than 2MB.
Attach the audio file to your email and send it to email@example.com
None of the above, from hi-tech to lo-fi
In a joint experiment with our colleagues at BBC FiveLive's UpAllNight, we are experimenting with phone-ins using calls over the internet using VoIP - Voice over Internet Protocol technology.
Listeners who use services like Skype, Vonage, Googletalk etc may be able to take part in discussion programmes using their computer and a headset rather than a telephone. As well as connecting with the millions of people around the world who now use these services instead of normal telephones - we're hoping this will bring us better audio quality on some calls.
This doesn't mean the BBC is saying you must sign up for one of these services to take part in our programmes - but if you have them already please listen out details of how to take part during the programme - then email details of your comments, VoIP provider and username - and you will have another way to Have Your Say.
Because there are so many providers - and generally you cannot make free calls between them - we don't have the technology to work with all these services at once.
Generally, it is possible to find service providers who will allow free PC-PC calls to other people using the same service. You may be offered premium services during the sign up process - like voicemail and the ability to buy credit to dial out to normal phone lines - but these are optional. It is also worth spending time making sure you are not listed in any directories you'd rather not be in - and find out how you can block incoming calls from people you'd rather not be contacted by.
If you want to know more, check out BBC Webwise and "Ask Bruce"
If you're not into high-tech communications, but have some old low tech recording technology? No problem, give us a call or drop us an email at firstname.lastname@example.org and tell us how we can get in touch with you.
Bush House, the headquarters of the BBC World Service, is both a modern broadcasting facility and a museum of recording technology. Call us or send us an email, and we'll take care of the rest.
Whether it's a low-tech or hi-tech way of communicating, we want you to be able to participate.
The BBC may edit your comments and cannot guarantee that all emails will be published.