Reply to all users above:

-IllyVoIP is partner of Liveagent.com (https://www.liveagent.com/integrations/illyvoip) ; because is the leader in quality voip with crypto payments after Telnyx.
-They are engaged in sponsoring different professional gaming players worldwide (one of them: https://www.twitch.tv/qpujzzzz)
-You can search on Google "illyvoip", you will find many places where they're mentioned and people vouched for them.

I think this is enough, thnx for the trust

I contacted their support, told them about this post and they said that first 50 users who mention link of this post in a support ticket will receive EUR 10 into their account, I really just wanted to be part of bitcointalk and this was the first thing that came into my mind and never thought I'll be discussing if they're reliable or not but I'm glad that this company supported me and happy getting your EUR 10 for free to use for international voip/sip calling using custom ani/cli, sms and did numbers.

...and they're legally registered, they give invoices per each transaction: ILLYSOFT LLC, Shefcet Shkupi 69, 10000, Prishtine, Republic of Kosovo.

About bad reviews, I think they're competitors behind masks who want to damage their reputation, I guarantee you will never have trouble with them.

Their telegram channel: https://t.me/illyvoip

They offer free/trial voip credit for everyone that wants to try their services, they have a community in Telegram (1.3k subscribers), reach @illyvoip_official in telegram and you will get free credit for trying. You can use all services with test credit, except purchasing dids.

found a great site that accepts bitcoin, they offer voip, did numbers and sms, link: https://illyvoip.com