Improve efficiency with VoIP services

GMS’ IP-based channels offer flexibility and scalability for voice telecoms services, providing a crucial communication channel that grows as you do

Voice over internet protocol (VoIP)

VoIP services allow enterprises to place and transmit telephone calls over an IP network, such as the internet or VPN, helping them to present professionally using a multichannel landline phone number, no matter the size of the company.

SIP-Line: GMS provides enterprises with a direct landline phone number
  • Convenience. A SIP Line can be used anywhere as long as Internet connection is available
  • Multichannel connection: multiple calls can be conducted via separate lines simultaneously
  • Free calls within the enterprise

SIP-Trunk: For enterprises using an IP-PBX
  • Expand, and even move office location, without having to change your phone number
  • Multichannel connection. Multiple calls can be conducted via separate lines simultaneously
  • Free calls within the enterprise

Trusted and reliable voice services

VoIP services are scalable, allowing you to adapt as you grow. At GMS, we immerse ourselves in your business and analyze your goals and audience. We jointly design the best communication solution for your specific needs and provide our infrastructure to implement it.

Enhance your voice communications today.

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Our network encompasses 900+ mobile operators, with over 240 directly connected to GMS, which grants instant message delivery to any place on Earth


GMS’ multichannel messaging platform grants you access to multiple communication channels, which can be used depending on your business needs

International recognition

GMS was the first SMS services provider in Ukraine and has grown to become a recognized international messaging provider

Global presence  

GMS has six offices located all over the globe, and an HQ in Baar, Switzerland, meaning wherever you are, GMS is there for you


GMS sets and follows high standards of security, recognized by ISO certifications

Success cases

More than 400 brands enhance their audience interaction with multichannel communications, voice and customer engagement tools from GMS

Let’s grow your business together

Contact us to find out how you can benefit from our expertize