AbtoVoIPClient

Name: AbtoVoIPClient
Rating: 3.7 (3 reviews)
Author: Sviatoslav Volodymyruvych Litynsky Private Enterpreneur

Utilities

Free · Designed for iPad. Not verified for macOS.

3 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

Sviatoslav Volodymyruvych Litynsky Private Enterpreneur
Language

EN
English
Size

12.2
MB

ABTO Software's VoIP SIP softphone. Can be used to call sip numbers and landline numbers (if sip provider has this option). Features: voice calls; video calls; text chat (based on SIP MESSAGE request); works with all popual SIP servers, including Asterisk/FreeSwitch; make direct calls between clients without SIP server; allows to use UDP/TCP/TLS protocols for SIP transport; ability to make secure calls using SRTP/ZRTP; supports STUN/ICE; IPv6 support; CallKit - native incoming call UI and system integration of VoIP calls; 2 simultaneous calls; call conferencing; attended transfer.

Ratings & Reviews

3.7

out of 5

3 Ratings

Needs a bit more
05/06/2021
tgwaste
Great for my purposes. Needs speakerphone, dark mode, full size keypad on calls and to be able to hear the touch tones when you press them.
Needs a bit more
05/06/2021
tgwaste

Great for my purposes. Needs speakerphone, dark mode, full size keypad on calls and to be able to hear the touch tones when you press them.
Connection freezes when timer or alarm goes off
12/23/2025
Teala2
I will be on an active session and every single time my alarm or timer goes off, the connection freezes, and doesn’t let me do anything without closing the app from the app switcher and starting over. Decide from that, it works great.
Connection freezes when timer or alarm goes off
12/23/2025
Teala2

I will be on an active session and every single time my alarm or timer goes off, the connection freezes, and doesn’t let me do anything without closing the app from the app switcher and starting over. Decide from that, it works great.
Very useful
08/24/2021
MavericksCuba
Our team use the SDK of this team and it’s very useful. In other order, we have an issue with IPv6 and T-Mobile with the SDK that can’t register. If you can help us, will be a great help. Best regards.
Very useful
08/24/2021
MavericksCuba

Our team use the SDK of this team and it’s very useful. In other order, we have an issue with IPv6 and T-Mobile with the SDK that can’t register. If you can help us, will be a great help. Best regards.

- CallKit for VoIP calls integration with iOS: native incoming call UI, system become aware of VoIP calls, contact selected ringtone, etc - Multiple calls support: enabled 2 simultaneous calls - Attended transfer - Redesigned call screen - Minimum supported iOS version raised to 15 - Small fixes: IM suggestion table selection, IM screen on iPad, icons

Version 4.0 09/04/2025

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: Sviatoslav Volodymyruvych Litynsky Private Enterpreneur
Size: 12.2 MB
Category: Utilities
Compatibility: Requires iOS 15.6 or later.

iPhone
Requires iOS 15.6 or later.

iPad
Requires iPadOS 15.6 or later.

iPod touch
Requires iOS 15.6 or later.

Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 4+

4+

Learn More

Contains
Messaging and Chat