Linux Apps for Communications
Top 3 Communications Apps for Linux
More Communications Apps for Linux

DAHDI Tools (Linux)
FreeInterface applications with telephony hardware.
LinuxCoccinella for Ubuntu
FreePresent your words with diagrams, and formulas.
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Mozilla Thunderbird Beta for Linux
FreeFamiliarize with Thunderbird's emerging innovations and make assessment contribution to overall performance improvement.
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XChat for Linux
FreeJoin multiple IRC channels at the same time.
LinuxZimbra Collaboration Suite for SUSE Linux Enterprise Server
FreeGet enterprise messaging and collaboration system.
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Gammu for Ubuntu
FreeManage contacts, messages, calendar, and file system of your mobile phone.
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Dovecot for Fedora (32-bit)
FreeGet the IMAP and POP3 server for your Linux system.
LinuxZimbra Collaboration Suite for Fedora (64-bit)
FreeGet enterprise messaging and collaboration system.
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Psi for Ubuntu (64-bit)
FreeSend messages or chat using your Jabber account.
LinuxCentericq for Redhat Linux
FreeGet a text mode menu and window driven IM interface.
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Hastymail for Linux
FreeGet a web mail client for your Linux system.
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Openfire for Linux
FreeChat with your pals using XMPP protocol.
LinuxPsi for CentOS
FreeSend messages or chat using your Jabber account.
LinuxaMSN for Debian (64-bit)
FreeGet a MSN compatible messenger application.
LinuxCompletePBX 5
FreeSet up virtual PBX for Xorcom hardware and software phone system.
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TwitHaven for Linux
FreeShort messages and attachments without the complexities of Email and SMS text systems.
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Gammu for Debian (64-bit)
FreeManage contacts, messages, calendar, and file system of your mobile phone.
LinuxPsi for Mandriva Linux
FreeSend messages or chat using your Jabber account.
LinuxSurgeMail beta for Linux (32-bit)
FreeGet a scalable, secure, and carrier class Email server.
LinuxMutt for Linux
FreeGet a text-based MIME Email client for your Linux system.
LinuxDada Mail for Linux
FreeGet a web based Email list management system on your Linux machine.
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Openfire for Red Hat
FreeChat with your pals using XMPP protocol.
LinuxGammu for openSUSE, Fedora, Mandriva, and CentOS (64-bit)
FreeManage contacts, messages, calendar, and file system of your mobile phone.
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