VOM vs Vutalk

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

Vutalk is an end-to-end encrypted messenger for people who would rather not hand over a phone number or an email address. You create an account without either. The app gives you an Account ID and a recovery key, and nothing else is needed. Other people reach you through the username you pick, or the QR code that goes with it. Your address book is never uploaded. Messages, calls, and files are encrypted on your device before they leave it, and the keys stay on your devices. Nobody in between can read them, and neither can we. FEATURES No number, no email — Create an account with no phone number and no email address. Keep your Account ID and recovery key: they are how you get back in. Username and QR code — Share a username, or let someone scan your code. Your contacts are never uploaded or matched against our servers. Encrypted messaging — One-to-one and group conversations, end-to-end encrypted by default. Voice and video calls — Encrypted calls, one-to-one and in groups, with voice or video. Photos, video, and files — Send images, videos, documents, and voice messages through the same encrypted channel. Wallet — Receive, send, and view history from Settings. The keys stay on your device. Disappearing messages — Choose how long a conversation keeps its history, from seconds to weeks. Free, with nothing to buy — No subscriptions, no in-app purchases, and no advertising. Modern cryptography — Key agreement uses X3DH, and every message advances a Double Ratchet, so earlier messages stay protected even if a device is compromised later. Accounts created with an email address in an earlier version keep signing in with that address.