https://yourdialer.org provides you with the cheapest international calling rates available!
Just follow these easy steps to start saving on your calls immediately :
1-
Download the client YourDialer
OR 
Download the client MobileVoip
2- Create a New Account:
Step1: Send 1001 to the WhatsApp number: 15672100050
WhatsApp: 15672100050
Step2: A link will be sent to your WhatsApp number to set your Email.
Step3: Confirm your email and receive your account details:( Username & Password).
5- Use your (username & password) with YourDialer Or MobileVOIP App to start calling.
6- After making a payment you will be able to create one or more of voip accounts.
7- You can recharge your voip accounts from your main account if you have credits.
6- Usernames alaways end with *yourdialer
SIP OPTIONS:
Domain or IP: 77.72.174.129 on port 5060
User Name: Your voip account (username*yourdialer)
Password: Your voip account's password
Caller ID: your mobile number