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I need a set of fully verified U.S.-based SIP trunk accounts ready for immediate use in my business phone system. The trunks will carry mostly international traffic, so call quality must stay crystal-clear and consistent under load, and I need a provider who backs that up with responsive, knowledgeable support whenever issues arise. To be considered, the trunks must already be KYC-cleared with a U.S. carrier or wholesale switch, allow international outbound, and present clean caller ID with no gray routing. G.711 and, ideally, G.729 should be available. Please specify concurrent call limits, allowed IPs, and any rate-center restrictions in your offer. Deliverables • Active U.S.-verified SIP credentials with international enabled • Technical sheet covering codecs, IPs, and max channels • Quick-start guide plus live support contact I’ll run test calls to several countries; trunks must maintain a MOS of 4 or better over 24 hours before I release payment. If you can supply reliable capacity and solid customer service, let’s get started right away.
Project ID: 40468761
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8 freelancers are bidding on average $201 AUD for this job

With over 10 years of experience in network administration, system engineering and VoIP, I have honed my skills to ensure a smooth experience for clients needing robust network infrastructure. In your case, I understand the importance of crystal-clear and consistent call quality, especially for your international communications. My expertise includes working with a variety of major vendors such as Cisco, VMware and Microsoft among others. This wide exposure has allowed me to build a deep understanding of optimal communication systems design based on best practices while keeping security and performance efficiency at the forefront. Moreover, my quick response time and 24-hour availability speak to my commitment to provide you with the best possible support for any issues or queries that may arise during or after the implementation process. I can guarantee transparent communication, reliable capacity and a solid focus on delivering what you need to the highest standard. Let's get started right away!
$150 AUD in 3 days
7.3
7.3

Hello, I can help you set up a reliable and high-quality SIP trunking system for your business phone infrastructure focused on stable international calling, good audio quality, and proper scalability. I will configure SIP trunks using trusted providers, ensuring proper KYC-compliant setup, international outbound capability, and clean caller ID configuration. The setup will include codec optimization (G.711/G.729 where available), concurrent call configuration, IP whitelisting, and secure SIP authentication for stable performance. I will also perform call quality testing (MOS checks), routing optimization, and ensure the system maintains consistent performance under load. You will receive full technical documentation, including configuration details, limits, and a quick-start guide for your PBX or Asterisk system. Warm regards, Harpreet Singh
$70 AUD in 5 days
4.7
4.7

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.
$200 AUD in 2 days
5.5
5.5

Hi, I can help with U.S.-verified SIP trunk setup and testing for international traffic. I have experience with SIP/VoIP, carrier routing, codecs (G.711/G.729), CLI, QoS, and load/stability troubleshooting. Before we proceed, a few questions: • Which carrier/wholesale switch are the trunks with? • Expected concurrent call volume (CC)? • Which countries will you mainly call? • Any preferred IP whitelist / authentication method? • Can you share codec support, rate-center limitations, and support SLA details? I’m available to start immediately and assist with testing, configuration, and validation. Estimated cost and timeline can be finalized after requirements review.
$140 AUD in 1 day
1.8
1.8

Hello Sir, As a seasoned Senior Full Stack & DevOps Engineer with an extensive background in backend architecture, cloud infrastructure and systems design, I excel at creating high-performance applications that are built to scale from day one. This includes building robust APIs, microservices and SaaS platforms, all of which I believe fall right in line with the verified SIP Trunks project you need assistance with. I understand the criticality of maintaining crystal-clear and consistent call quality, especially when dealing with international traffic. My expertise in cloud services such as AWS and Azure goes hand-in-hand with your specified requirements of KYC-cleared trunks and max channel limitations. Additionally, my proficiency in Docker and Kubernetes ensures seamless deployment of solutions, enhancing reliability particularly under heavier loads. Thanks! John
$155 AUD in 5 days
0.0
0.0

I’m Juan Pablo. I understand exactly what you need: fully verified, clean‑route U.S. SIP trunks that support international outbound, stable MOS 4+ quality and proper KYC clearance with a U.S. carrier or wholesale switch. I’ve worked with VoIP infrastructures using Asterisk/Kamailio, multi‑carrier routing, anti‑fraud controls and trunk provisioning, so I can supply trunks that present clean caller ID, support G.711 and G.729, and maintain consistent quality under load. I’ll deliver active credentials, a technical sheet with codecs/IPs/max channels, and a quick‑start guide with live support contact. You’ll be able to run your 24‑hour test across multiple destinations without jitter, gray routes or dropped quality. If you want, I can explain how I validate clean SIP routing, ensure MOS stability or manage international outbound compliance before we begin. Ready to proceed immediately.
$500 AUD in 7 days
0.0
0.0

Sydney, Australia
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