Proton Movies Groundwire the leading Business SIP Client is now available on Android. Packed with all the features a business user needs Groundwire makes taking your office line with you everywhere a breeze. Check out all these great features with more coming soon.

•Push Notifications for incoming calls for improved battery life
•Multiline
•Call Conferencing
•Transfer and Attended Transfer
•Voicemail
•Call Forwarding
•Bluetooth headset support
•Secure calling through SRTP (SDES)
•ZRTP support (through in app purchase) the latest in secure calling for SIP
•Support for use on wifi and 3G networks
•backgrounding support with status bar notification; check your email or other tasks while still available for calls on the Softphone
•quick import of accounts from major VoIP Providers
•call recorder and player seamlessly integrated into the call history
•Bluetooth headset support

•HD Wideband audio through G.722 and Opus codecs
•excellent sound quality includes the G.711 (ulaw and alaw) and GSM audio codecs. Make an in app purchase to add G.729 Annex A for great quality over 3G networks
•TLS support for encrypted SIP
•audio codec manipulation enabling you to prioritize the codecs used and disable ones you don’t want to use
•comfortable and super-smooth user interface fine-tuned specially for Android
•easy intuitive configuration
•simultaneous registration of multiple SIP accounts have multiple accounts registered to receive incoming calls and switch the account used for outgoing calls without leaving the keypad
•Android contacts integration. Easy to call anyone in your contacts via SIP
•add new contacts directly from Groundwire
•ability to generate DTMF tones while in call to control various PBX features or automated systems (use audio rfc 2833 or SIP INFO)
•speakerphone support
•detailed call history
•configurable RTP port range
•SIP Proxy support
•STUN server support automatic service discovery using DNS SRV queries
•phone number resolution. We present the phone numbers in a convenient format with grouped digits display the flag and country name and even region/city name for some countries including USA

Groundwire is a SIP Client not a VoIP provider. It needs to be used in conjunction with a VoIP provider that supports use on a SIP Client to work.