VoIP SIP SDK for iOS
Maс OS
Development environments
VOIP SIP SDK for iPhone on objective-C (Xcode);
VOIP SIP SDK for iPhone on Swift.
Features
CallKit support
PushKit support
Conference call
stable background mode until iOS 16, PushKit+CallKit support for operation in background on newer iOS versions;
ability to use SDK as dynamic or static library
MWI support
SIP/RTP
STUN, NAT64
IPv4/IPv6 support
most SIP servers support
ICE
TURN
UDP/TCP support
seamless network change
voice and video calls
transfer calls
calls recording
ability to route audio to Bluetooth headset
IM
secure connection via SRTP+TLS, ZRTP
changing camera orientation
switching between multiple cameras
Available codecs
H.263
H.263+
H.264
VP8
G.711-ALaw
G.711-muLaw
G.729
OPUS
Speex
Theora
GSM
SILK
G722.1
G723.1.
iOS versions
VoIP SIP SDK for iOS 18
VoIP SIP SDK for iOS 17
VoIP SIP SDK for iOS 16
VoIP SIP SDK for iOS 15
VoIP SIP SDK for iOS 14
VoIP SIP SDK for iOS 13
VoIP SIP SDK for iOS 12
Updates
Update VOIP SIP SDK for iOS
November 6, 2024
Try new features by downloading our latest update of VOIP SIP SDK for iOS. iOS changelog: – BREAKING CHANGE: fixed crash on iOS 16+ caused by socket background marking deprecated in iOS 10, this feature was used to operate while in background so that current SDK is unable to work in background on iOS 16+ without using …
Learn moreUpdate VOIP SIP SDK for iOS
April 7, 2022
Try new features by downloading our latest update of VoIP SIP SDK for iOS. Change log: SDK licensing using license user and key: same SDK can be used as full or trial with features like single or multiple calls; license key based feature support; Added new option ForceTransportIpVersionReverseNegotiation for ForceTransportIpVersion; Fixed error 502 on some cellular IPv6 networks; …
Learn moreUpdate VOIP SIP SDK for iOS
June 30, 2021
Please download our latest update of VoIP SIP SDK for iPhone: Change log: – Framework transitioned to XCFramework format – seemless Swift language support without need to use Bridging Header, just import AbtoSipClientWrapper – updated CallKit Swift sample with latest changes to CallKit handling – advanced CallKit+PushKit Swift sample with common interface wrapped in easy to use class with delegate to adapt …
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ABTO Software VoIP SIP SDK for iPhone and iPad will help you to quickly build a custom softphone app for iOS.