VOIP Engineer Needed With Experience On Asterisk, FreeSwitch, SIP

@farooqtahir2013

As an experienced Network Engineer, I understand the complexities of Voice Over Internet Protocol (VOIP) and the potential issues that can arise. This is why I believe my extensive knowledge, with over a decade of experience working with tools like Asterisk PBX and FreeSwitch, would make me an ideal fit for your project. Not only have I expertly designed and implemented Network infrastructures, but I've also delved into VoIP technologies such as FreePBX, 3CX, Vodia, and Cisco CUCM. Regarding the noise issue you're facing during outbound calls, I've encountered similar obstacles in the past. I am confident that my problem-solving abilities and skillful approach to identifying and rectifying root causes will enable me to swiftly resolve this problem for you. By mitigating potential mis-sampling or bit rate issues within your Asterisk installation on AWS, we can help facilitate smooth communication for your AI bot. Furthermore, my track record proves my commitment to professionalism and dedication. I guarantee quick responses to your queries while maintaining high standards in project delivery. Rest assured that by choosing me, you are hiring a seasoned expert equipped with the requisite skills and expertise to carry out your task efficiently and effectively. Let's work together to optimize your VOIP calling system!

@webmasters486

Asterisk Hey, I’ve reviewed your project and understand you’re looking for an expert VOIP/SIP engineer to resolve audio issues between your AI Voice Calling Bot and Asterisk on AWS. The focus will be on eliminating sharp noise during outbound calls so your AI Bot can properly listen and process the conversation. I can troubleshoot and fix sampling, bit rate, codec, and other SIP/Asterisk configuration issues causing the noise. The solution will ensure your AI Bot works seamlessly with Asterisk calls while maintaining compatibility for multiple SIP providers. I’ll also provide guidance on optimal audio settings and webhook integration to avoid similar issues in future deployments. Let’s connect so I can outline the precise steps to make your AI Bot fully functional with Asterisk and SIP providers. Best regards, Muhammad Adil Portfolio: https://www.freelancer.com/u/webmasters486

@Azursol

Hello Syed! I’m excited about the opportunity to help with your project. Based on your requirements, I believe my expertise in Node.js aligns perfectly with your needs. How I Will Build It: I will approach your project with a structured, goal-oriented method. Using my experience in Linux, Asterisk PBX, VoIP, Telecommunications Engineering, Node.js, Debian, FreeSwitch, SIP, AI Chatbot, AI Development, I’ll deliver a solution that not only meets your expectations but is also scalable, efficient, and cleanly coded. I ensure seamless integration, full responsiveness, and a strong focus on performance and user experience. Why Choose Me: - 10 years of experience delivering high-quality web and software projects - Deep understanding of Node.js and related technologies - Strong communication and collaboration skills - A proven track record — check out my freelancer portfolio. - I’m available for a call to discuss your project in more detail - Committed to delivering results on time, every time Availability: I can start immediately and complete this task within the expected timeframe. Looking forward to working with you, Syed! Best regards, Ali Zahid Pakistan

@devsonie

Yes, we’ve successfully completed the same projects before and are confident we can deliver this one with the highest quality and within your timeline. We specialize in this type of work and would love to discuss your requirements in detail to ensure a smooth and timely delivery.

@dyjibran

Asterisk. Hi, I hope you are doing well. Myself Jibran and i read your project details carefully. I'm working as system and network administrator since 2013. I'm using asterisk since same year and work on twilio and other services. I can help you in this to fix noise. Let's connect.

@ssquare489

I am Sumit Joshi from Sacesta Technologies. • Asterisk • I will fix the sharp noise by aligning codecs, sample rates, and RTP handling between Asterisk and your AI bot webhook bridge so audio is clean and the bot can listen and respond as expected. • What I will check first • Codec mismatch: confirm what your bot expects (typically PCM 16-bit 8 kHz or 16 kHz) vs what Asterisk is sending (ulaw alaw opus g722) • Sampling and framing: 20 ms frames, correct payload type, no double transcoding • RTP issues: symmetric RTP, strict RTP, NAT settings, and jitter buffer behavior • DTMF mode conflicts: RFC2833 vs in-band causing artifacts • Webhook bridge audio path: ensure you are not treating RTP as raw PCM, and that you decode and resample correctly before feeding the bot • Fix actions I typically apply • Force a known clean codec end to end, usually ulaw 8 kHz or linear16 with explicit settings • Disable unnecessary transcoding and set ptime consistently • Correct Asterisk PJSIP endpoint settings: allow, disallow, direct media off, RTP symmetric, rewrite contact, and proper external address config • Validate with packet capture to confirm the audio stream is valid and matches expected format • Add a small resample step in Node if the bot requires 16 kHz and SIP leg is 8 kHz • Deliverables • Clean outbound calls from Asterisk with no noise • Bot reliably receives audio and can listen • Notes on the exact settings changed and why, plus a repeatable checklist for new SIP providers

@huzaifa306

Hi, I have solid experience working with VOIP, SIP, Asterisk, Twilio, and AI voice bots, including fixing audio issues related to sampling rates, codecs, and bit rate mismatches. I can quickly diagnose the sharp noise problem, align the media settings correctly, and make sure your AI bot listens and responds properly during Asterisk calls, just as it does with Twilio.

@Erantkm

With a comprehensive understanding of Voice over IP (VoIP) systems and a special focus on Asterisk, FreeSwitch, and SIP technologies, I believe I am the best candidate to solve the noise issue in your AI bot call. My expertise is firmly rooted in my solid skills as an Electrical Engineer, particularly in signal processing and circuit design. This breadth of knowledge enables me to analyze complex audio problems swiftly and accurately. Notably, my proficiency goes beyond identifying issues to solving them effectively. I have successfully rectified sound distortions caused by numerous factors including mis-sampling and bit rates—a skill set pivotal in addressing the sharp noise you mentioned. Furthermore, my experience extends to incorporating webhooks, thus ensuring a seamless integration between your AI Calling Bot and the Asterisk-Powered system you're using. With my track record devising innovative solutions for challenging technical problems paired with an unwavering dedication to client satisfaction, I am confident that hiring me would result in your expected outcome—clear calls with your AI bot fully functional throughout. Don't settle for anything less than perfection for your project; choose the "Asterisk" expert who gets the job done right from inception through completion—choose me!

@daniela0725

Hello, I can help you resolve the ‘sharp noise’ issue you’re experiencing. This is a classic symptom that occurs when Asterisk and an AI voice bot are not properly aligned on audio codecs, sample rates, or RTP packetization. I have extensive hands-on experience diagnosing and correcting these interoperability issues to ensure clean, stable audio in production environments. I’m available to start immediately, and I’d be happy to review your setup and discuss the solution with you via chat.

@muneeb6767

I’ll migrate your Python script to a web-accessible service using FastAPI/Docker so you can trigger runs, monitor status, and download results from anywhere, securely and without desktop dependencies. Fast turnaround, clean deployment, and easy redeploys included.

@putri0091

saya ingin bekerja sama dengan anda, saya dapat di andalan dan rajin serta jujur dan dapat di percaya

@DigitalNightOwl8

Hello there , Good afternoon! I am professional mobile developer with skills including AI Development, FreeSwitch, Node.js, Telecommunications Engineering, Asterisk PBX, VoIP, Debian, Linux, AI Chatbot and SIP. "Asterisk" Please send a message to discuss more about this project. If you have any questions, please let us know

@chiragm078

As an experienced full-stack developer with a specific focus on AI and Node.js, I'm confident in my ability to help you resolve the noise issue and get your AI Voice Calling Bot up and running smoothly. Over the past 5 years, I've honed my skills in troubleshooting and fixing complex technical issues like audio quality. My expertise extends to tools such as Asterisk and FreeSwitch, as well as various communication protocols including SIP. I understand that this is not a job for beginners or intermediates, and that's why my extensive experience aligns perfectly with what you're looking for. Having successfully developed and deployed similar projects in the past, I know what it takes to ensure your AI Bot "listens" and functions seamlessly with almost any SIP provider. I've also got in-depth knowledge of sampling rates, various bit rates, and their implications when it comes to audio quality. When you choose me for your project, you're not just hiring a freelancer; you're bringing on a dedicated partner who is driven by your complete satisfaction. With a guaranteed response time of less than 2-3 hours, real-time support across multiple time zones (including EST), and a line of communication that's always open, I'm all about ensuring that your project receives the utmost attention and care it deserves. Let’s collaborate on this intriguing project and bridge the gap between your AI Voice Calling Bot