OSMS callback service was designed to save cost for callers when making local and international calls

Introduction
. In principal, the registered caller send a SMS message which indicate the destination number they wish to call. Within a short while, the caller will receive a callback from our callback system with the called party connected. In short, the caller needs only their registered mobile phone to send SMS message to trigger a call. By using the SMS callback service the caller can always enjoy the discounted or free incoming-call rates in any other part of the world.

QUICK LINKS
• User Guide for OSMS CallBack
• Singapore Users
• How to make Conference Calls
• O-Touch

Gateway Numbers SMS Gateway : Normal CallBack Gateway : IVR Registration Line : +65 9171 4246 +65 9232 8255 +65 9171 4246 +65 9232 8255 +65 6416 2926 (Fix Line) +65 6883 5019 (Call to Register & Top Up your account)

Conference Call NEW Multi-party conference up to 6 people Send "Conf num1 num2 num3 num4 num5 num6". numx = telephone numbers. Receive call back and get connected to everyone. (* Singapore SMS gateway only) To call and add new party in the on-going conference, send "add num1" during the conference. Sending SMS while talking could be tricky. If you want to receive your first call back to alternate phone, you can use "confp num1 num2 num3". Then you will get the first call back to the 'num1' instead of your mobile. This way, you can free up your mobile phone for another SMS, if needed.

User Guide Please Refer to the Figures Below if necessary Register the PIN to your mobile phone. 1. Compose a SMS text message "R xxxxxxxxx(PIN)" (figure 1). 2. Send the SMS to +9171 4246. 3. You will receive an acknowledgement that your mobile is registered and you will be ready to call out (figure 2). To make a IDD call. 1. Compose a SMS text message (figure 3), C xxxxxxxx (country code + area code + destination number)�. 2. Send the SMS to +9171 4246. 3. You will receive a call connected to the called party. To make a callback to a phone other than your registered mobile. 1. Compose a SMS text message (figure 4), P xxxxxxxx (callback no) xxxxxxx(destination no)� 2. Send the SMS to +9171 4246. 3. You will receive a call to the callback no with the called party connected. To check your current account balance. 1. Compose a SMS text message, "B". 2. Send the SMS to +9171 4246. 3. You will receive a message (fig.2) which display your account balance. To top-up your existing account with your PIN. 1. Compose a SMS text message, " R xxxxxxxxx(PIN) " 2. Send the SMS to +9171 4246. 3. You will receive a message which shows your new account balance. To make another phone call without hanging up when calling. 1. Press the "#" key after the previous call end. To transfer your balance to your friend. 1. Compose a SMS text message " TX xxxxxxxxx(Friend's mobile number) 99(Amount)". 2. Send the SMS to +9171 4246. 3. You will receive a message that the amount is transferred.

Figure 1 Figure 2 Figure 3 Figure 4

Note : ** You must use a GSM mobile phone and have the PIN ready