We tested the functionality that allows handling multiple phone numbers for a single customer within a campaign, and I am pleased to report that it worked very well for our purposes. This is a genuinely great and extremely useful addition to SIP Caller. Please accept my congratulations on deploying such a valuable feature.
We appreciate your team’s continued development efforts to enhance the platform.
Gregory Eid
Managing Director - Teledata ICT
At Lubritodo, the integration of SIP Caller has completely transformed our customer communication. Previously, promoting our products and coordinating our agents' schedules was a manual, slow, and difficult-to-manage process.
Today we have an automated, agile, and reliable system that allows us to make calls efficiently, send personalized messages, and maintain continuous follow-up. Thanks to SIP Caller, we have strengthened our connection with our clients, improving our productivity, the quality of our service, and the internal organization of our team.
Camila Calle
Communications Analyst - Lubritodo
At the Federico Lleras Dermatological Center, we have had an excellent experience since implementing SIP Caller solutions. Previously, coordinating calls with patients to invite them to our Dermatitis campaigns and workshops, pharmacy promotions, and specific pharmacy products was a manual process that required a lot of time and effort from the administrative and call center staff.
With SIP Caller, we've automated a large part of that process, reducing missed calls and improving our patients' punctuality. Communication is now smoother, faster, and more professional. It has undoubtedly represented a significant improvement in the center's efficiency and in our patients' satisfaction.
José Martín Campos Torres
IT Department - Centro Dermatológico Federico Lleras Acosta ESE

We’ve had the pleasure of working with SIP Caller now for over 12 months. In this time, we’ve onboarded many customers who are realising the value in the product, as we did when we became a SIP Caller Partner.
The entire SIP Caller team are fantastic to work with, very receptive to feedback and development of the platform is fast and high quality.
The toolset has evolved considerably, adapting to customer feedback and addressing new requirements as they arise. We’ve suggested several features for the dialler – and they’ve been implemented quickly and with no issues.
SIP Caller is the most powerful dialler solution we’ve seen – coupled with being intuitive and easy to use for non-technical individuals running and managing campaigns. The toolset and options SIP Caller provides means that the platform can be used for any type of campaign, from Sales, Data Collection, Appointment/Payment reminders – anything. The platform provides easy to use templates – which our customers love. It allows them to have a campaign up and running in minutes.
For those who have more complex requirements – the included Designer allows full customisation of your customers journey when contacted by the campaign.
Currently, I believe SIP Caller is the best solution available for creating, managing, and reporting on outbound telephony campaigns of any kind. Nothing currently comes close to the platform, and the team behind it.
Pete Sunday
Head of Technical Operations - Fuse 2
Metrotech’s technical and sales have been thrilled with the results provided by SIP Caller, which has strengthened our customer relationship with Debt Support even further.
The ability to utilise SIP Caller so easily with our 3CX services now allows our sales team to engage with more customers to explore future opportunities, confident in a positive outcome seen with Debt Support.
Joshua Armstrong
Operation Director - Metrotech Solutions
SIPCALLER.COM is an amazing product
We are a 3CX Titanium Partner based in Canada.
We have used other dialer solutions over the years. SIPCALLER.COM is the best product hands down in every way imaginable compared to everything else.
It is a full sip caller solution that has every feature you would want in a dialer. From AI Voice, API, Reports, Full Feature Set, Pricing and better technical support than you ever thought would be possible.
If you are looking for a dialing solution and use 3CX, then this is the product for you.
Jonathan Rapoport
President - Lifeline Total I.T. Solutions Inc

SIP Caller has completely transformed the way we manage communications within our organization. Its versatility is unmatched, offering a wide range of uses that seamlessly integrate with our existing systems. Whether it’s handling call campaigns, streamlining customer interactions, or integrating with third-party applications, SIP Caller does it all effortlessly. The user-friendly interface makes it accessible even for team members who aren’t tech-savvy, and the call quality is consistently crystal clear.
What truly sets SIP Caller apart, though, is its reliability and customization options, which allow us to tailor the platform to our unique needs. The robust analytics and reporting tools give us clear insights to help improve our strategies and as our business grows the scalability and flexibility ensure that it grows with us. Their support team is always responsive and knowledgeable, ensuring that we maximize the potential of this tool. I can confidently say SIP Caller is an invaluable asset for businesses of any size looking to enhance their communication strategy!
Kody Love
Tri-Cities IT - Customer Relations
In critical moments, technology makes a difference. During the recent passage of Hurricane Ernesto through Puerto Rico, Quantum faced the challenge of canceling and rescheduling essential medical services in record time.
Thanks to the predictive power of the SIP Caller dialer, we were able to contact more than 600 patients in less than 48 hours, managing the cancellation and rescheduling of appointments in an individualized, precise and timely manner. This significantly reduced the risk of exposure to the atmospheric phenomenon for patients and ensured effective communication in logistics management.
Without a doubt, this is a tool that we will implement in our standard communications operations.
Quantum 360
CEO