ESP32 SIP Voice Calling

@Mahihassi

As an electrical engineer specializing in firmware development and IoT product engineering, I have extensive experience with the ESP32 microcontroller, including VoIP and audio applications. I understand that your proof of concept project requires a deep understanding of the ESP32 platform to integrate the Waveshare board and TFT display into a functional WiFi voice call device. I have a Master's degree in Embedded Systems directly applicable to your project. Moreover, my proficiency with the ESP-IDF and Arduino frameworks suits the task at hand. Whether you prefer ESP-IDF or Arduino, I can deliver high-quality code that makes voice calls, handles two-way audio communication, registers to a SIP server and displays appropriate call statuses on the 2.8" TFT LCD Touch Screen.

@majeed219

With over a decade of experience as an Embedded Systems Engineer and PCB Designer, I am well-versed in developing firmware for microcontrollers, including significant work with the ESP32, and have a deep understanding of WiFi technology. Your project perfectly aligns with my expertise, hence you can be assured of excellent output. I have particularly worked with SIP integration on different platforms before and understand the nuances that come with making a device VoIP enabled. What you seek for your Kickstarter demo is an area I believe we could exploit optimally. Moreover, my hands-on experience with a wide range of electronic development boards from Arduino Uno to STM32 Nucleo gives me the flexibility to choose the best-suited framework for your project-Esp-IDF or Arduino. But rest assured whatever the choice we make, it will deliver results. Lastly, consistent client satisfaction is my benchmark and top priority. You can rest assured that not only will I promptly deliver your code to compile and flash but also provide simple yet comprehensive setup notes including SIP creds, WiFi config, and wiring for display. Additionally, a video demonstration showcasing its capabilities as promised will be prepared. Let's collaborate to bring your idea to life! Hire me now and let's get started on creating this remarkable proof of concept!

@amelectronics

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.

@engrusmanfaiz

Dear Client, I am an Electrical and Embedded Systems Engineer with strong experience in ESP32-S3 firmware, audio codecs, and VoIP-capable embedded systems. I can develop a working proof-of-concept firmware for the Waveshare ESP32-S3 Audio Board with the ILI9341 TFT display, enabling WiFi connectivity, SIP registration, and two-way voice calling with clear call status on the screen. I have hands-on experience with ESP-IDF, Arduino framework, SPI displays, and real-time audio streaming on ESP32 platforms. I will deliver clean source code, setup documentation (WiFi/SIP configuration), display wiring details, and a demo video showing a successful call. My focus will be stable audio performance and reliable SIP communication suitable for your Kickstarter demonstration. I would be glad to discuss your hardware setup and begin immediately.

@markoa7

My name is Marko Aleksic, a multifaceted HW and firmware engineer with a strong grasp of Arduino and a mastery of WiFi and embedded systems - just the key skills needed for your ESP32-S3 VoIP Phone project! My expertise in designing reliable PCBs, proficiency in pertinent communication protocols such as UART, SPI- perfectly positions me to efficiently handle this project. I have a successful track record developing microcontroller programs for STM32,DSPIC,ESP32 and ESP8266 and this makes me excellently positioned to deliver a robust solution to your project. I have Also as an added bonus, my strong RF Design & Analysis capabilities will play a pivotal role in ensuring that your device's connection is not only stable but also reliable,contributing significantly to better audio quality during voice calls. Furthermore,I’m quick to learn so I can quickly get up to speed on ESP-IDF and deftly apply it according to project needs. Lastly, my meticulousness in design coupled with my commitment to delivering cost-effective yet high-quality solutions make me an ideal candidate for your Kickstarter demo. Choose me and we'll work closely together to ensure that your vision of a working WiFi voice call device comes true; one that stands out among competitors in terms of performance while meeting and exceeding your requirements within budget constraints. Let's connect and get started on an amazing partnership today!

@farooqtahir2013

As an experienced Network and VoIP Engineer, I would be the perfect choice for your ESP32 SIP voice calling project. With my decade-long experience, I have gained in-depth knowledge of various VoIP solutions such as astPBX, 3CX, Vodia, Asterisk, and many more- platforms similar to what you require. This familiarity with both small- and enterprise-level projects ensures that I am well-equipped to deliver efficient and reliable results for your Kickstarter demo of the ESP32-S3 VoIP Phone. Moreover, my extensive expertise in Network Administration (Routing, Switching), Wireless Technologies (including Ubiquiti - which aligns precisely with your project requirements), as well as System Administration (Microsoft and Linux servers) will definitely come in handy during this proof of concept task. My skills also extend to Cloud Computing, a pertinent asset since you seek smooth Wi-Fi connectivity. In addition to my broad profile, I guarantee promptness; I'll be available 24/7 for calls or queries and prompt in delivering quality work. As your dedicated freelancer, I'll ensure the code is functional, fully-documented and provide easy-to-follow instructions for setup. Let's get this campaign working reliably and impressively together!

@TheElitePro

Hi, 1. I have worked on a audio product using ESP32 and very well aware of the Arduino EPS32 architecture and firmware development. 2. I have completed several firmware based projects/products using microcontrollers like ESP32, MSP430, STM32, PIC, AVR, Raspberry Pi etc. 3. I have worked on complex industry-grade applications such as Energy Meters, video surveillance camera software design, predictive maintenance systems for Industry 4.0, Battery charging controller, IoT-based solutions like the Smart Street Light, Water distribution monitoring system, Motor controllers, RO controllers etc. I request you to check the project highlights section.. 4. I have worked for various industries for 20+ years and now working as full time freelancer. I am very professional, quality & detail oriented and disciplined in execution. 5. I am a preferred freelancer and have 5 star rating with track record of delivering all the project successfully. All this has resulted into repeat customers. I will provide you the source code, compiled binary and documented steps to generate results at your end. I can remotely access the unit for development. I am available to start from tomorrow. Regards, Vishal

@matthewc179

Hi, Awesome! I recently completed a project exactly like ESP32 SIP Voice Calling, so I have strong experience with this type of work. I’d be happy to share my past results and show how I can help you. Thank you!

@johnedwardl

Hi, I can turn your Waveshare ESP32-S3-Audio-Board and TFT display into a functional WiFi voice call device for your Kickstarter demo. My experience with the ESP32 family includes previous work on embedded VoIP solutions, ensuring a smooth integration of SIP registration, audio handling, and display functionality. I'll implement a reliable connection to your chosen SIP server, enabling two-way audio with clear call status updates on the display. My approach will prioritize a clean architecture, ensuring the source code is easy to compile and flash, while providing straightforward setup notes for SIP credentials and WiFi configuration. Could you clarify which SIP server you prefer for testing? Additionally, any specific requirements for the call status messages would be helpful. Let’s connect to finalize the details and get this project underway. Thank you.

@fakhara1ha

Hey , I just finished reading the job description and I see you are looking for someone experienced in Twilio, Arduino, Embedded Systems, WiFi, Audio Processing, Asterisk PBX, SIP and VoIP. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further.

@dejanm44

Hello, I'm excited about the opportunity to turn your Waveshare ESP32-S3-Audio-Board and 2.8" TFT display into a functional WiFi voice call device. With extensive experience in embedded systems and VoIP projects, I understand the nuances of SIP registration and audio processing, ensuring a smooth and effective demonstration for your Kickstarter campaign. I will develop firmware that connects to WiFi, registers with a SIP server, and allows two-way audio. The display will show basic call statuses, making it user-friendly. Additionally, I will provide source code for compilation, setup notes including SIP credentials, and a video demonstration of the device in action. I can deliver this in 7 days, ensuring timely results for your project. What specific SIP server do you prefer to use for registration? Thanks, Dejan

@BenJeremie

With my background in electronic hardware and firmware design, as well as my specific experience with microcontrollers including the ESP32, I am confident that I can successfully deliver the VoIP phone functionality you are looking for with your Waveshare ESP32-S3-Audio-Board. Over the years, I’ve honed my skills in various tasks relevant to your project such as board-level testing, peripheral connectivity (I2C, SPI, UART, I2S) and embedded hardware designs. This means that not only can I transform your hardware into a working WiFi voice call device, but I can also ensure its durability and reliability. Furthermore, my familiarity with Bluetooth Low Energy (BLE) and wireless communication systems will be invaluable in ensuring the phone can connect seamlessly to WiFi and register to a SIP server. I understand your desire for a simple yet functional prototype for this phase - no fancy UIs or advanced features. My forte lies in delivering efficient and effective solutions that meet specifications without any unnecessary complications. As a bonus, we could even explore using an integrated OTA update system to offer future enhancements.