VOM

VOM for iPhone
VOM for iPhone is the newest SIP softphone from PortSIP Solutions, Inc., it's built base on PortSIP VoIP SDK, allowing users to enjoy multimedia communications over the Wi-Fi or 3G/LTE connection on iPhone.

Featuring an intuitive interface, VOM for iPhone is expanding the softphone experience by making it even easier to make Voice over IP calls.It's support access the existing iPhone contact list.

VOM for iPhone works seamlessly with your internet connection, it including great features to help you stay in touch with friends, family and co-workers, share your thoughts and views and find the information you need. You can use it on your iPhone, allows you to speak with any other softphone, any stand-alone IP-phone, or using Internet Telephony Service Provider (ITSP) with any traditional wired or mobile phone. It supports SIP and is fully inter-operable with most major VOIP vendors and ITSPs.

Features:Support platforms: iPhone5 and iOS 8.0+
Full SIP compliance: RFC3261
Support servers: Open SER, SER, Asterisk, Portaone, Radvision, Nortel, Avaya and other standard SIP Platforms.

Audio call: AMR-NB, AMR-WB,G.711 aLaw/uLaw, G729,iLBC,GSM,Speex-NB,Speex-WB,OPUS
Calling features:
mute speaker.
mute microphone.
Call Transfer.
Conference.
Hold/unHold.
SIP SIMPLE support.

DTMF support: Send DTMF tone(RFC2833).SIP INFO.
Other features:
Silent Ringtone
Acoustic Echo Cancel
Voice ActivityDetector
STUN support