asterisk-h323 1:1.8.4.4~dfsg-2ubuntu4 (i386 binary) in ubuntu precise

 Asterisk is an Open Source PBX and telephony toolkit.
 .
 This channel driver (chan_h323) provides support for the H.323 protocol
 for Asterisk. This is an implementation originally contributed by NuFone and
 nowdays maintained and distributed by Digium, Inc. Hence, it is considered
 the official H.323 chanel driver.
 .
 There is another H.323 channel implementations for Asterisk: chan_ooh323,
 distributed by Debian as asterisk-ooh323c.
 .
 For more information about the Asterisk PBX, have a look at the Asterisk
 package.