Call Ringing and Call Busy tones in VOIP application

HI I've read your requirements in detail. I'm kick-ass amazing phone developer who is not afraid to dig in and make things happen! Iím available for communication 15+ hours a day including voice chatting. I will be more than happy to get your response. Please check my review and portfolio. Thank you for reading my words.

Hello , We have vast experience in developing Native application in iPhone, iPad ,Android OS and Web PHP. We have large team of that skills with designer since 4 years. We have checked your requirement and we are interested to working on it. You can see our reputation on freelancer we have completed 50+ projects with no incomplete projects. We ensure to give a best quality apps and games please check our profile. Wann to discuss more about project . waiting for your reply... Thanks.

How are you I am so interested in your project. I am very confident to deliver perfect result I hope to meet you to discuss more details. I would look forward to hearing from you. Kind regards. Wang

Hi I am a Mobile App Developer. I would like to participate in developing your project. I have already developed many Android apps using calling part. You might have read this in my profile. Please send me private message. We can discuss it. Of course, I will do my best. Thanks in advance.

Hello Just exciting and interesting project. This is on my line. So I can satisfy your requirement perfectly. But actually, I don’t know exactly about your project details, so I couldn’t estimate the cost and timeline exactly for now. If you have time and want to discuss details about your project, please let me know. I hope your good response. Sincerely. Yong.

Hi! I sincerely read your requirements and I am ready to endow with the solution as per your requirements. I can assure you that I will provide you high level of satisfaction and support to gain your confidence. Best Regards