1. How To Call In Voicemail

To add telephony to your Gmail inbox, you must first download Google's voice and video chat plug-in. If you've experimented with Gmail's video chat feature, you have the plug-in already. Dial up free calls in the U.S. And Canada, and enjoy low international calling rates when you use Gmail to make VoIP calls. You Say Line, I Say Call. VoIP phones handle calls differently than other business phones. Above, the buttons in the yellow rectangle are the toggle buttons. VoIP phones allow you to pick between current, incoming, and held calls using the toggle buttons. These buttons rarely appear on landline phones.

Linphone (contraction of Linux phone) is a free voice over IPsoftphone, SIP client and service. It may be used for audio and video direct calls and calls through any VoIP softswitch or IP-PBX. Also Linphone provides the possibility to exchange instant messages. It has a simple multilanguage interface based on GTK+ for GUI and can also be run as a console-mode application on Linux.

The softphone is currently developed by Belledonne Communications in France. Linphone was initially developed for Linux^[9][10] but now supports many additional platforms including Microsoft Windows, Mac OS X, and mobile phones running Windows Phone,^[11]iOS^[12] or Android.^[13] It supports ZRTP for end-to-end encrypted voice and video communication.

Linphone is licensed under the GNU General Public License (GPL) and supports IPv6. Linphone can also be used behind network address translator (NAT), meaning it can run behind home routers. It is compatible with telephony by using an Internet telephony service provider (ITSP).

Features[edit]

Linphone hosts a free SIP service on its website.^[14]

Linphone client provide access to following functionalities:^[15]

• Multi-account work
• Registration on any SIP-service and line status management
• Contact list with status of other users
• Conference call initiation
• Combination of message history and call details
• DTMF signals sending (SIP INFO / RFC 2833)
• File sharing
• Additional plugins

Open standards support[edit]

Protocols[edit]

• SIP according to RFC 3261 (UDP, TCP and TLS)
• SIP SIMPLE
• NAT traversal by TURN and ICE
• RTP/RTCP
• Media-security: SRTP and ZRTP

Audio codecs[edit]

How To Call In Voicemail

Audio codec support: Speex (narrow band and wideband), G.711 (µ-law, A-law), GSM, Opus, and iLBC (through an optional plugin)

Video codecs[edit]

Video codec support: MPEG-4, Theora, VP8 and H.264 (with a plugin based on x264), with resolutions from QCIF (176×144) to SVGA (800×600) provided that network bandwidth and CPU power are sufficient.^[16]

Gallery[edit]

• One of initial version's interface of Linphone in Linux (GNOME)

• Linphone running on HTC Desire

• Linphone 4.1 working on Windows 8 (main screen)

• Linphone 4.1 settings on Windows 8

See also[edit]

References[edit]

1. ^'Windows Desktop'. web site. Retrieved 2019-03-03.
2. ^'Apple on the App Store'. iTunes Store. Retrieved 2019-03-03.
3. ^'Linphone'. Google Play Store. Retrieved 2019-03-03.
4. ^'Linphone'. microsoft store. Retrieved 2017-12-01.
5. ^'Linphone'. Archived from the original on 2016-01-13.
6. ^FreeBSD port of Linphone
7. ^Linphone.org » Linphone » LicensingArchived 2013-08-15 at the Wayback Machine
8. ^[1]
9. ^'LINPHONE, SIP video phone client'. Retrieved 1 September 2014.
10. ^AndroidTapp.com: Linphone Video, Make Phone Calls over Phone’s Internet without using Minutes
11. ^Linphone
12. ^Ostatic.com: Blog: Bye Bye Skype, Top 3 Free ReplacementsArchived 2011-11-27 at the Wayback Machine
13. ^
14. ^'Free Sip service'. Retrieved 20 March 2019.
15. ^'Features'. Linphone. Retrieved 2019-02-03.
16. ^Linphone.org » FeaturesArchived 2010-07-23 at the Wayback Machine

External links[edit]

• Official website

Landline phone usage normally requires a physical connection to a phone line, which in turn is routed through several miles of wiring in order to reach the person you are trying to call. Voice Over Internet Protocol (VoIP) however, instead routes most of the call through the Internet, resulting in reduced costs to both the provider and the user of the VoIP line. The best thing about VoIP is that with the right adapter, you can continue to use the same phone you used on your landline.

Step 1

Connect the VoIP adapter to your router using the Ethernet cable.

Step 2

Open a Web browser on your PC such as Internet Explorer and type the IP address of the VoIP phone adapter (Typically included in the VoIP adapter's manual.)

Step 3

Follow the on-screen instructions to configure the adapter for use. Enter your VoIP provider username and password you received when opening your VoIP account when prompted. If unsure what settings to use, use the settings in your VoIP provider's self-installation guide.

Connect your landline phone to the VoIP adapter with a telephone cable to enable service.

Tip

• Sometimes there won't be a dial tone because the VoIP adapter will need to automatically download updates to its firmware before use. Wait a few minutes, then try again.

Warning

• Be aware that your VoIP connection also depends on your DSL or other internet broadband provider.

Items you will need

• VoIP Adapter (Should come with your VoIP provider's self-installation kit)
• Network with router
• Ethernet cable
• Computer connected to network
• VoIP service account

Video of the Day

• phone. image by Alexander Lukyanov from Fotolia.com

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