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Android VoIP App with GSM Integration

$30-250 USD

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İlan edilme: yaklaşık 2 ay önce

$30-250 USD

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I'm seeking an expert Android developer to create a VoIP app with GSM integration. This project includes, but is not limited to: - Developing an app for calling and text messaging through a SIP server, inclusive of delivery reports. - Implementing features such as call recording and instant messaging. - Ensuring compatibility with older Android versions. Since I don't have a preferred SIP server, your input and recommendations would be highly valued. Experience with SIP servers and a strong understanding of both VoIP principles and Android development are necessary for this project. Your role will be pivotal in guiding the selection and integration of the SIP server. Please consider the above requirements when placing your bid.
Proje No: 37767297

Proje hakkında

36 teklif
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Son aktiviteden bu yana geçen zaman 22 gün önce

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36 freelancers are bidding on average $250 USD for this job
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Hi There! You need an Android VoIP App with GSM Integration, As per your project need, I can build your project more efficient with my knowledge and experience. I'm looking to work with you and I'm very sure that you'll feel great to work with me. Along with your project requirement, I'll provide you clean source code with free bug fixing and maintenance. I Have 7+ years of work experience in web and mobile Apps development. I have worked on so many projects like Real Estate, Grocery, Classifieds, Instagram Clone, Taxi, Delivery, food delivery, Inventory Management, Reward, Social Media, On-demand Services provider, Nutrition, school management, Pos, E-commerce, Event booking, etc. I am fully dedicated to doing my work very efficient and less time-consuming. "Looking forward to your positive response please open your chat window to more details" Thanks. regard, Christina
$300 USD 10 gün içinde
4,9 (82 değerlendirme)
7,4
7,4
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Dear [Client's Name], I hope you are doing well. I have a deep understanding of your requirements for an Android developer to create a VoIP app with GSM integration. I have extensive experience in Android development, especially in VoIP apps. With my expertise, I can ensure a high-quality and functional application for you. To better understand your project, I would appreciate additional details about specific design ideas and functionalities you have in mind. This will help me tailor my proposal to your needs, providing an accurate timeline and cost estimate. Regarding technical inquiries, it would be helpful to know if you have any preferences or requirements for the SIP server. If not, I can make suitable recommendations based on industry standards. Additionally, I would love to hear more about your preferences for call recording and instant messaging features. As an Android developer with a successful track record, I am confident in my ability to exceed your expectations. I specialize in Full Stack Development and Mobile App Design, with experience in integrating third-party APIs and technologies. I am committed to building long-term relationships with my clients, delivering outstanding support and top-notch work. I am here to address any concerns and ensure your satisfaction throughout the development process. I look forward to discussing your ideas further and working together to bring your VoIP app to life. Please feel free to share any additional details or ask any questions you may have. Thank you for considering me for this project. I am excited about the opportunity to work with you! Best regards, Ahmad Ayaz
$225 USD 5 gün içinde
4,9 (11 değerlendirme)
6,7
6,7
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Hello, I understood your requirement of VoIP App with GSM integration. With 8 years of experience in mobile application development i have good understanding android frameworks,SIP Library,RESTful API for communication ,SIP Server, Ui/UXx design which is essential for this project. The app will include features such as call recording, instant messaging, and delivery reports for text messages. Compatibility with older Android versions will be ensured to maximize user reach and accessibility. SIP Server Recommendation : Asterisk, FreeSWITCH, and Kamailio (Based on factors such as reliability, scalability, performance, and compatibility) I am available to discuss the project in more detail. Looking forward to it. Regards, Sagar P.
$250 USD 7 gün içinde
4,8 (15 değerlendirme)
6,8
6,8
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With over a decade of experience in mobile app development, Einnovention has successfully completed over 248 Freelancer.com projects with a satisfied client base, earning us an impressive rating of 4.9/5. Our extensive expertise encompasses Android, iOS and hybrid app development and our dedication to staying at the forefront of technological advancements makes us an ideal choice for your VoIP app project. Understanding the importance of SIP servers for VoIP, our team includes experts who can guide you on selecting and integrating the best SIP server for your app. Additionally, our proficiency extends to delivering features like call recording, instant messaging and ensuring compatibility across various Android versions. We also provide free consultation sessions to assist you in making informed decisions about your project's requirements. Einnovention thrives on offering flexible solutions tailored to our client's needs. We believe in continuous communication, unlimited revisions and providing complimentary service beyond completion to ensure utmost customer satisfaction. I assure you that choosing us will result in a high-quality, efficient VoIP Android application with seamless GSM integration that meets all your requirements. Let's connect and together create an app that revolutionises communication for your users!
$120 USD 7 gün içinde
4,9 (9 değerlendirme)
6,2
6,2
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I am going to start your project right now. I've successfully delivered multiple VoIP projects in the past, always focusing on quality and client satisfaction. My innate ability to collaborate, problem-solve, and effectively communicate allows me to understand the unique needs and preferences of my clients. With this understanding, I accordingly tailor my approach to best suit their objectives - a strategy that has consistently yielded positive results. For your project specifically, I will bring all my VoIP and GSM integration expertise to ensure that we develop a top-notch app that covers all your required functionalities- calling, text messaging via a SIP server inclusive of delivery reports, instant messaging, call recording and compatibility with older Android versions. Besides executing these tasks meticulously, I'll provide valuable input necessary for selecting the most suitable SIP server for your application's seamless integration. Ultimately, choosing me will not only guarantee you a robust VoIP app but also a productive collaboration that respects your vision while delivering optimal results. When we work together on your Android VoIP App with GSM Integration project you can rest easy knowing you're working with someone who values your input and will go above and beyond to ensure you're completely satisfied with the final product. Let's join forces to take your project to new heights!
$180 USD 4 gün içinde
5,0 (15 değerlendirme)
5,6
5,6
Kullanıcı Avatarı
Hi Dear, I am excited about the opportunity to work on your project involving the development of a VoIP app with GSM integration Here's how I propose to proceed: Developing Calling and Messaging Features: I will implement calling and messaging functionalities within the app, ensuring seamless communication for users. This will include real-time voice and video calling capabilities, as well as text messaging features. Call Recording: I will incorporate call recording functionality, allowing users to record their calls for future reference or playback. This feature will enhance the usability of the app and provide additional value to users. Compatibility with Older Android Versions: I understand the importance of ensuring compatibility with older Android versions to reach a wider user base. I will optimize the app to ensure smooth performance across different Android versions, ensuring that all users can enjoy the full functionality of the app. Selection and Integration of SIP Server: I will play a key role in selecting a suitable SIP server that meets your requirements and seamlessly integrate it with the app. This will involve thorough research and testing to ensure that the chosen SIP server is reliable, secure, and compatible with the app's features. Please feel free to reach out if you have any questions or if you would like to discuss your project further. Best regards, Nasir Iqbal
$140 USD 7 gün içinde
4,5 (28 değerlendirme)
6,0
6,0
Kullanıcı Avatarı
Dear Hiring Manager, I am excited to submit my proposal for the development of your VoIP app with GSM integration. As an experienced Android developer with a deep understanding of VoIP principles and Android development, I am confident in my ability to deliver a high-quality, feature-rich app that meets your requirements. Thank you for considering my proposal. I am eager to collaborate with you and bring your vision for the VoIP app to life. Please feel free to contact me if you have any questions or would like to discuss further. Best regards, Lalit
$240 USD 7 gün içinde
5,0 (20 değerlendirme)
4,8
4,8
Kullanıcı Avatarı
ثقة عملائنا هي أهم هدف نصبو إليه. الاحترافية والكفاءة هما المعيارين الأساسيين عند اختيار أعضاء فريقنا. لدينا فريق من المهندسين المُتخصصين في كلاً من برمجة المواقع وتطبيقات الهاتف والذين سوف يضمنون لك دعم مدى الحياة عن أي خلل قد ينشأ عن الأكواد التي تم استخدامها. كما أن لدينا فريق من المتخصصين في مجال تصميم المواقع والشعارات، عمل فيديوهات متحركة، عمل تصميمات داخلية وخارجية، والترجمة. لدينا المزيد من المعلومات، يُرجى التواصل معنا في أي وقت.
$140 USD 7 gün içinde
4,6 (9 değerlendirme)
4,8
4,8
Kullanıcı Avatarı
Hi There! As per my understanding, You need to build an Android VoIP App with GSM Integration for VoIP calls over 3G, 4G/LTE, 5G, or WiFi. Available for both SIP and IAX systems for end users, service providers, call centers, or any business willing to benefit from VoIP communications. Right? Sincerely, I can help you out with this project with my rich experience in Android VoIP Apps with GSM Integration development. I can provide you solutions with all features & functionalities, high UI/UX, and easy to navigate. Features in your App: - Support for different color schemes - Bluetooth support - Lowest battery usage with the highest reliability/stability on Google Play - Lowest latency of all Android softphones - Excellent audio quality, even on older devices - Supports calling over 3G and WIFI - Background/multitasking support - Integration with the native Android contact list - Speakerphone mute and hold - UDP and TCP transports - Supports g711 (ulaw, alaw), speex, iLBC and gsm codecs - Supports sending of DTMF - DNS SRV - Built-in echo cancellation - STUN support - Change ringtone per account - Call waiting - Video support - Call Transfer I have 7+ years of experience in developing (both native and hybrid) applications for Android. In addition to your project needs, I'll provide you with clean source code, free bug patches, and maintenance. Please contact me via chat so we can continue discussing the project. Thanks & Regards Urvashi
$945 USD 7 gün içinde
5,0 (1 değerlendirme)
2,9
2,9
Kullanıcı Avatarı
With a decade-long experience in app development, my team at RAM TECH is well-versed in crafting powerful and efficient solutions for our clients. Our comprehensive skillset, including proficiency in Android and Java, perfectly aligns with your requirement for an expert to create a VoIP app with GSM integration. We've successfully developed such apps before, which leveraged their respective SIP servers to enable calling, text messaging, instant messaging, and even call recording - all features you've specifically mentioned. Being familiar with the nuances of VoIP principles ensures that I understand the intricacy of this project and can provide you with the best solutions. Moreover, we have a tried-and-tested process in place to ensure compatibility with various Android versions, including the older ones. Leveraging our wide-ranging mobile technology skills, I am confident that we can help guide your SIP server selection and seamlessly integrate it within your app. Furthermore, our commitment to regular communication and delivering projects on-time will keep you updated throughout the development process - promoting long-term collaboration and a fruitful business relationship. Choose RAM TECH for outstanding expertise, proven results, and a friendly knowledgeable team!
$140 USD 7 gün içinde
5,0 (4 değerlendirme)
1,7
1,7
Kullanıcı Avatarı
Hello Dear Mir Zulfiqar A., after thoroughly reading your PROJECT DESCRIPTIONAndroid VoIP App with GSM Integration I have clearly understood it and i would like to work with you. I am a skilled and experienced in the named SKILLS Java, Asterisk PBX, Mobile App Development, Android and VoIP. I consider your project DOABLE as it is within my areas of EXPERTISE. I am a competent guy committed in making your project a SUCCESS and providing the best QUALITY to your SATISFACTION. NB. #100% job completion, No excuses on meeting the deadline, good communication and provision of update on job progress. Please click the chat button for more discussion about the project. In case your project is deleted you can hire me directly on my profile (click hire me on my profile). CHEERS and Thanks in advance.
$30 USD 6 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Hi Mir Zulfiqar A. It seems like you're looking for a senior engineer who can complete the project - Android VoIP App with GSM Integration. I am writing to express my keen interest in your project since I have definitely worked on the similar projects in the past. Proven Track Record: I have a solid track record of successfully completing projects similar to yours, with positive feedback from satisfied clients. Technical Expertise: My extensive experience in IT development equips me with the skills needed to navigate the complexities of Java, Asterisk PBX, Mobile App Development, VoIP and Android. Deadline Commitment: I understand the importance of timelines and am committed to delivering your project on schedule. With over 7 years of experience in IT development, I have successfully delivered projects similar to yours. My expertise spans a range of technologies and platforms, and I am confident in my ability to provide you with high-quality work within the specified deadline. I am eager to discuss your project further and explore how my skills align with your vision. A conversation would allow me to better understand your specific requirements and share insights on how we can achieve your goals. Best regards, Paulo
$250 USD 3 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Hi, there! Having confirmed the job posting, it seems like you might be looking for a senior developer for your project - Android VoIP App with GSM Integration. I have worked with similar projects so that I can provide you with a satisfied result. This project really caught my attention because I have been working in this specific industry for 10 years now, and have not only gained experience or knowledge but, I have got the answer to the main problem which many clients face which is communication and I can assure that you will be satisfied and updated throughout the process, if we move forward. Can't wait to have you on chat with me, and to get started with this project. Regards
$200 USD 5 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Hello, Hope you are doing well. I’ve carefully checked your project: Android VoIP App with GSM Integration Very familiar with Android, Java, Mobile App Development, VoIP and Asterisk PBX I can complete your project on time and will provide you 100% satisfaction. Can start working right now on your project. Looking forward to hearing you back and discussing all details. Will wait
$180 USD 2 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Hello Mate!Greetings Mir Zulfiqar A., Good evening! I am skilled mobile developer with skills including VoIP, Java, Asterisk PBX, Android and Mobile App Development. Please send a message to discuss more regarding this project. A fast response is appreciated
$30 USD 2 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Hello, As an experienced Android developer, I believe I possess the needed skills to successfully undertake your VoIP app project. My years of experience have endowed me with not only a thorough understanding of Android app development, but also a strong flair for collaborating with cross-functional teams, which is vital for the success of a project like this. Moreover, my knowledge and experience in DevOps along with tools such as Terraform and Ansible can be invaluable in optimizing the development workflow of the project. By utilizing Infrastructure as Code (IaC), Continuous Integration/Continuous Deployment (CI/CD) and my automation/scripting expertise, I aim to increase the efficiency and ultimately quality of your app. My familiarity with Agile methodologies further complements this project's requirements. I am adaptable and can easily mold my approach to fit your needs, be it selecting and integrating the effective SIP server or ensuring compatibility with older Android versions. I promise to bring out my best - a blend of technical proficiency, creative problem-solving, and effective communication skills to ensure the successful execution of your VoIP app vision.
$140 USD 7 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Hi there, With my extensive experience in Android and Java, I'm confident in delivering a top-notch Android VoIP app tailored for your unique needs. Detail-oriented and always striving for perfection, I'll ensure that your app not only supports calling and SMS through a SIP server but also incorporates essential features like real-time call recording and instant messaging with delivery reports. Moreover, my familiarity with working on diverse Android versions guarantees that the app will be compatible and functional across a wide range of devices. This versatility is essential for accommodating the varying user preferences and needs in the competitive Android market. In addition to my technical expertise, I bring a collaborative mindset to the project. Understanding the importance of your input and preferences, I'll work closely with you to select and integrate the most suitable SIP server to meet your unique project goals. I am confident that partnering with me will result in a powerful VoIP application that streamlines communication while staying true to your vision. Let's discuss your project further!
$140 USD 7 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Greetings Dear Client, I hope this proposal finds you well. Welcome to my profile, Home to Professional and Quality services with 100% customer satisfaction guarantee. I'm a Certified Dev & Experienced Expert in the respective project requirements. Dear Client, I take this opportunity to inform you that i have KEENLY gone through all your project requirements as given in your project description and I confirm to you that i can perfectly deliver as instructed. Being in possession of all CLEARLY STATED required project skills (Asterisk PBX, VoIP, Java, Android and Mobile App Development) as this is my area of professional specialisation having completed all Certifications and developed adequate experience in the same area, I hereby humbly request you to consider my bid for Professional, Quality and Affordable services always. STRICT TIMELY DELIVERY & UNLIMITED REVISIONS. Incase your project is deleted, you can hire me directly via the link; https://www.freelancer.com/u/topglobaldev Kindly Message Me We Discuss More About The Project and seal the contract. Welcome and Thank-you.
$250 USD 1 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
Dear Client, I am an experienced Android developer with expertise in Java, Mobile App Development, Android, Asterisk PBX, and VoIP. I am excited about the opportunity to work on your project to create a cutting-edge VoIP app with GSM integration. I have a strong understanding of VoIP principles and extensive experience in Android development, making me the perfect fit for this project. I am confident in my ability to develop an app for calling and text messaging through a SIP server, including features such as call recording and instant messaging. Additionally, I am well-versed in ensuring compatibility with older Android versions. Your project aligns perfectly with my skills and I am eager to work together to create a user-friendly solution. I look forward to discussing the project further and providing you with a high-quality deliverable. Thank you for considering my proposal. Best regards,
$250 USD 7 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
With my extensive experience in Android development and VoIP principles, I would be an excellent fit for your project. Going above and beyond simple app development, I will bring my comprehensive knowledge of SIP servers to ensure smooth integration and optimal performance. Additionally, my understanding of older Android versions guarantees that your app will have maximum reach among users. Clear communication is an invaluable aspect of any project, and I take pride in my ability to provide timely updates and maintain transparency throughout the entire process. I believe our collaboration should be a partnership, and as such, I will work closely with you to make informed decisions about server selection and implementation.I can assure you high-standard service delivery with a polished final product in agreed time frame. In conlusion, If you're looking not just for a developer but for a dedicated partner who will maximize the potential of your project by combining expertise, creativity, and good communication skill, then I am the right choixce for you. Let's discuss further about our shared vision for this app.
$140 USD 7 gün içinde
0,0 (0 değerlendirme)
0,0
0,0

Müşteri hakkında

   UNITED ARAB EMIRATES bayrağı
Ajman, United Arab Emirates
5,0
3
Ödeme yöntemi onaylandı
Şub 9, 2013 tarihinden bu yana üye

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