Free SIP Client: The Little Big SIP Star Twinkle Shines Brighter.

Twinkle, a free SIP client that I have been playing around for a while and was meaning to write has released a new version. Twinkle is a softphone for VoIP and IM needs using the SIP protocol. You can use it for direct communication or in a network using a SIP proxy to route your calls and messages.The Twinkle 1.2 brings many new features and bug fixes. But remember, Twinkle is available for Linux only. So those new computer from Asus to Everex with Linux pre-installed will be able to use Twinkle as their communications client. Visit Twinkle for more information and download.
Twinkle 8 march 2008 - 1.2
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- SIP over TCP
- Automatic selection of IP address.
* On a multi-homed machine you do not have to select an IP address/NIC
anymore.
* You can now start Twinkle when the network interface is down.
- Support for sending a q-value in a registration contact.
- Send DTMF on an early media stream.
- Choose auth over auth-int qop when server supports both for authentication.
This avoids problems with SIP ALGs.
- Support tel-URI in From and To headers in incoming SIP messages.
- Print a log rotation message at end of log when a log file is full.
- Remove 20 character limit on profile names.
- Reject an incoming MESSAGE with 603 if max. sessions == 0
- Delivery notification when a 202 response is received on a MESSAGE.

Bug fixes
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- When you deactivate a profile that has MWI active, but MWI subscription failed,
and subsequently activate this profile again, then Twinkle does not subscribe to
MWI.
- The max redirection value was always set to 1.
- Leading space in the body of a SIP message causes a parse failure
- Twinkle crashes with SIGABRT when it receives an INVITE with
a CSeq header that contains an invalid method.
- Latest release of lrelease corrupted translation files.
- Twinkle crashes on 'twinkle --cmd line'
- If an MWI NOTIFY does not contain a voice msg summary, twinkle
shows a random number for the amount of messages waiting.
- Depending on the locale Twinkle encoded a q-value with a comma
instead of a dot as decimal point.

Build changes
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- Modifications for gcc 4.3.
- Remove fast sequence of open/close calls for ALSA to avoid
problems with bluez.
tag: SIP Client, VoIP, IM, free SIP client, Twinkle 1.2, Linux, SIP proxy