TalkTT is an app which lets you make/receive phone calls and send/receive SMS directly from your iPhone or iPad. You also can buy phone numbers from 80+ countries receive calls or sms.or phone plans from 30+ countries to make calls or send SMS via the best calling or sms routes in the world. FEATURES - Make phone calls or send text messages on your iPhone/iPad to any international destination - Buy DID phone numbers from 80+ countries or regions to make/receive calls or send.receive text messages. - Buy phone plans from 30+ countries or regions to make/receive calls or send/receive text messages. - Buy Special Offer phone numbers from popular countries like USA/Canada/UK/Belgium/Australia/Brazil etc. - Voice Mail will be provided automatically once you have DID phone numbers with us. - Support many advanced features like Caller ID/Call Forward/Call Block/SMS Delivery Status/Phone Number Lookup/Phone Number Recover etc. - Select regular contacts from the contact list to make a call or send SMS. - Check history call records from Recent Calls. - Choose your favorite voice prompt language from Settings. - Choose your favorite rate plan from Standard/Premium/Gold/Direct plans. - Choose auto prefix to format your local calls automatically. Auto Detection for calling number: Before each call has been sent out, our system will check the number you dial and give you alert if we find the number doesn't seem to be a valid number according to your auto prefix setting and give you options to continue calling or cancel it to change. If you have any questions about using our app, you can open our app, then go to "Settings"->"Contact Us" to send one message to us. Our support will help you in the first place. Thanks.