Zadarma Reviews 677

Takes 20 days to approve the number. You'll find that out after they already take your documents and your money. If you have any business plans that require speed avoid like the plague.

P.S. The response is below from Zadarma claims some other case (probably to a person with same name), as I have first used the service on September 2nd. That just makes more evident how many such cases happen. The problem is that the 20 day delay is a surprise for everyone and is not part of their marketing package. Thankfully I got a refund and now use a service that gave me a service next day. The support person said the following to me:
"Confirmation takes from 10 to 20 days" That seems to be the problem.

Number is blocked while in verification.

I bought the number, it worked. Installed the trunk on my PBX. Changed all my outgoing and incoming rules. Informed my colleagues how to used it, shared the number with customers.

Then at the end of the day, I notice it's not working. I log in to Zadarma, and there is a message that I need to verify. I ask via chat why nobody informed me about it while registering, they just say, you need to verify. Fine, but the number is blocked...

I ask them what they need, they say a copy of the passport...

I upload that, they reject it, because they need it scanned in a specific way. I scan the way they asked me, then they give me instructions to do it differently. I do that, then I get a new explanation how to make a selfie with my passport and write the date on an A4 paper with Zadarma text... Why don't you say that the first time??

Now, three days later, still no verification, the number is blocked. I need to reroute everything to the old trunks (luckily I didn't cancel those).

On the chat, they all just reply that they can't help with verification.

Super frustrating.

I don't know if the number will work in the future, but I write this to anyone purchasing the number from them to plan a full week of verification process, before applying anything on your PBX.

*Reply after Zadarma's reply* 09-09-2025

I completely understand that you need to verify, I have zero problems with that. But you don't communicate it transparently. I was allowed to use the number for the full work day. And after I made the payments to start using it, you block it. You don't give instructions on how to register, until after the fourth upload.

And the point is that I have installed everything on PBX just before you blocked it.

I see many comments here on Trustpilot about this process, so do something about it.

Our appointment system used to rely on staff remembering to call clients and send reminders, which inevitably led to missed calls and double bookings. Using Zadarma’s API, we connected our booking software to automatically trigger call reminders and send SMS confirmations when clients schedule or reschedule. It’s removed human error from the process and drastically reduced no‑show rates. We’ve freed up staff time and delivered a more reliable service experience.

AS a small business, we don’t have a big marketing budget and previously made decisions based on hunches. We started assigning unique phone numbers to each advertising campaign, and the call reports revealed which ads drove actual conversations. For example, a pricey LinkedIn ad generated only three calls, while a modest Google ad brought in dozens, so we shifted our budget accordingly. It’s a level of clarity we never had before, and it has already paid for itself.

We’ve had a terrible experience with ZADARMA. Since August 21, 2025, we’ve been trying to verify just one phone number. We submitted all company data, employee photo with passport and current date, and every requested document.

After a week, nothing happened. Our documents were rejected because the date “no longer matched”—but that’s only because support replies once every two days! By the time they review, the date is outdated again.

Slow, incompetent, and unprofessional. I strongly recommend avoiding ZADARMA for business use.

During lockdown, our company moved all communication and collaboration to Microsoft Teams. With Zadarma integrated, we take and transfer calls directly within Teams, see who is available, and even listen to voicemail without leaving the app. Our remote staff feel more connected, and we avoid toggling between multiple tools. It has simplified our tech stack and kept our focus on talking to customers rather than managing software.

We recorded custom greetings that guide callers to sales, support or billing, and the whole system sounds polished and friendly instead of robotic. Clients reach the right person quickly, which cuts down on transfer times and improves their mood by the time they get to a human. On top of that, we can change prompts easily for promotions or holiday hours, ensuring the system always reflects our current needs. It feels like having a mini contact center without the cost.

When it was just me and my partner, we needed only two lines and a few basic features, and Zadarma’s entry level plan fit the bill perfectly. As we hired more employees and expanded to new markets, we upgraded our plan twice, and each change was instant—no contracts, no hidden fees, and no downtime. I appreciate paying only for what we actually use. This flexibility has allowed us to grow without being locked into an oversized plan we couldn’t yet justify.

Our marketing team works from cafés and coworking spaces with unpredictable internet, and we were concerned that VoIP would drop calls or sound choppy. Even on shaky Wi‑Fi connections, calls stay clear, voices don’t break up, and we’ve never had a call drop unexpectedly. That reliability means we can hold client presentations or internal meetings without embarrassment or frustration. We’ve stopped worrying about audio quality altogether, which has been a pleasant surprise.

I travel between Lisbon, New York and Dubai for client meetings and used to rack up massive roaming charges. With Zadarma’s eSIM, I can activate a local data connection before I land in a new country, and I still call clients from my usual office number. I no longer have to scramble for local SIM cards or worry about surprise bills, and my clients never see a foreign caller ID. It’s eliminated a stressful part of travel and saved hundreds in fees.

At first, I thought speech analytics was an unnecessary extra and that we could coach agents through experience alone. Then we received a complaint that was hard to pin down until we pulled up call sentiment acores and discovered one of our support agents often interrupted customers, a habit we hadn’t noticed in live calls. We used real excerpts during training, and within a week our satisfaction scores improved dramatically, proving the value of data-driven coaching. Now I routinely check speech analytics reports to catch small issues before they grow.

Our sales reps were drowning in follow‑up tasks because they had to log each call manually in the CRM, which often led to missed details. After integrating Zadarma with HubSpot, every call is logged automatically and recordings attach to the deal record, so the rep or manager can review context without guesswork. We’ve saved countless hours that used to be spent on data entry, and our close rate has improved because follow‑ups happen faster and are more informed. The integration has turned our sales process from chaotic to streamlined.

Our software company sells in the UK, Canada and Australia, and customers often hesitated to call an unfamiliar international number. We used to rely on a single global line, but now we have local numbers in each market, and we discovered that clients are much more comfortable reaching out. Being able to answer these calls from anywhere in the world while displaying a local area code has made us look far more established. Since making the switch, we’ve noticed more inbound inquiries and longer conversations with prospects.

I've been trying to activate a number for over a week. Zadarma keeps asking for more documents, even though I’ve already provided my passport and everything they initially requested. They’ve also received my payment – yet I still have no active number. Each time I contact support, I’m told to submit “one more” document, without any clear explanation. It feels like data harvesting more than a real verification process. This is by far the worst customer service I’ve ever dealt with – unresponsive, unhelpful, and extremely frustrating. Avoid this company at all costs.

I bought a virtual number and topped up my account specifically to receive SMS. Only after paying did I discover that SMS is locked unless you prepay 3 months in a single payment — a condition buried in external pages and not clearly shown during checkout or setup.

Support offered a partial refund, but the damage is done. The interface feels intentionally confusing, and key limitations are hidden until after you’ve paid. Won’t use again.

I have uploaded my ID document already a week ago and i'm just not getting any service from this company only charges

When you order number its not write that you have to upload any document...
But whatever, after buying number phone, it asking me to upload....
OK...a waiting 24H.
Then, it shows me that my documents are accepter, but can't use number to receive SMS...?

Very dissapoiting service.
For your next customer : before charging them, write them before that they i have to upload documents BEFORE buying number and share them that they cannot receive sms BEFORE buying number.

As others mentioned, their onboard process for SIP virtual commercial numbers is over complex and even when you provide all valid documentation several times, they reject it without providing any proper reason or guidance. Tried the online chat support and got nothing usefull to solve the issue, except the refund that for that they were efficient, probably because of the aumout I see here they are use to give. Petty they are not so efficient for the service itself. Going for competitor, Localphone, simple, but also more efficient that is more important than multipe services we may not even use.

I've been using Zadarma for 5 months and haven't had any issues since. I wasn't familiar with virtual numbers before and had to spend some time, figuring out what to do. The big advantage of Zadarma is that it has all the instructions (clear enough to grasp the required information!) Technical support is always happy to help if there's something still not clear.

My advice for people not satisfied with their experience - make sure you follow all the instructions and requirements mentioned. It's not as difficult as it might seem and really saves time/nerves.