HELP!!! LAN, warning on alsa card and other problems :-(

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HELP!!! LAN, warning on alsa card and other problems :-(

Luca Turchet
Hello to all,
I have seen similar postings to the mailing list regarding this subject,
however i did not seem to find an answer.

I have two computers (on a private lan) both are running SUSE: the first
(192.168.1.3) is a SUSE 9.3 with the version 1.0.0.3-1 of linphone,
the second (192.168.1.5)  is a suse 9.2 with linephon-0.12.2

Both are using alsa as the sound driver.

Either of the two computers calls the other and the following occurs:
both computers ring (audible sound) and the receiving computer answers
the request then nothing can be heard. this is the current problem that
I cannot work around.

I have tested the microphones and they are right.
At this point I have checked the port and the firewall as told in the manual
(I have made the port forwarding SIP on 5060 and RTP on 7078 on both the computers)
Then I gave the command netstat -a on both the computer and I got this (I make notice you the lines
of the udp and in particular the SIP line):

nintendo:/home/luca # netstat -a
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 localhost:929           *:*                     LISTEN
tcp        0      0 *:sunrpc                *:*                     LISTEN
tcp        0      0 *:ipp                   *:*                     LISTEN
tcp        0      0 localhost:smtp          *:*                     LISTEN
tcp        0      0 nintendo.router:28576   66.249.85.19:www-http   ESTABLISHED
tcp        1      0 nintendo.router:11051   goinfly.rossoa:www-http CLOSE_WAIT
tcp        0      0 nintendo.router:29217   66.249.85.83:www-http   ESTABLISHED
tcp        0      0 *:ssh                   *:*                     LISTEN
tcp        0      0 localhost:smtp          *:*                     LISTEN
udp        0      0 *:filenet-tms           *:*
udp        0      0 *:7078                  *:*
udp        0      0 *:7079                  *:*
udp        0      0 *:sip                   *:*
udp        0      0 *:mdns                  *:*
udp        0      0 *:sunrpc                *:*
udp        0      0 *:ipp                   *:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node Path
unix  2      [ ACC ]     STREAM     LISTENING     18198  private/scache
unix  2      [ ACC ]     STREAM     LISTENING     17947  /var/run/acpid.socket
unix  2      [ ACC ]     STREAM     LISTENING     16528  /var/run/mDNSResponder
unix  2      [ ACC ]     STREAM     LISTENING     16527  /var/run/netapplet.socket
unix  2      [ ACC ]     STREAM     LISTENING     16262  /var/run/.resmgr_socket
unix  2      [ ACC ]     STREAM     LISTENING     19620  /tmp/.ICE-unix/dcop7040-1137527650
unix  2      [ ACC ]     STREAM     LISTENING     20369  /tmp/orbit-luca/linc-1be8-0-3376fac620125
unix  2      [ ACC ]     STREAM     LISTENING     18316  /tmp/.X11-unix/X0
unix  2      [ ACC ]     STREAM     LISTENING     20913  /tmp/orbit-luca/linc-1c76-0-523d334e8f5a
unix  2      [ ACC ]     STREAM     LISTENING     19919  /tmp/.ICE-unix/7090
unix  2      [ ACC ]     STREAM     LISTENING     24111  /tmp/orbit-luca/linc-1f63-0-79d3d304c397a
unix  2      [ ACC ]     STREAM     LISTENING     9047   /var/run/dbus/system_bus_socket
unix  2      [ ACC ]     STREAM     LISTENING     19674  /tmp/ksocket-luca/klauncherGTry6b.slave-socket
unix  2      [ ACC ]     STREAM     LISTENING     19831  /tmp/ksocket-luca/nintendo.router-1bad-43cd4b69
unix  2      [ ACC ]     STREAM     LISTENING     19532  @/tmp/dbus-KKLU9qeDjF
unix  2      [ ]         DGRAM                    9434   /var/lib/named/dev/log
unix  2      [ ]         DGRAM                    9612   /var/lib/ntp/dev/log
unix  9      [ ]         DGRAM                    9355   /dev/log
unix  2      [ ACC ]     STREAM     LISTENING     17161  /var/run/nscd/socket
unix  2      [ ]         DGRAM                    18483  @/var/run/hal/hotplug_socket
unix  2      [ ACC ]     STREAM     LISTENING     18202  private/maildrop
unix  2      [ ACC ]     STREAM     LISTENING     18206  private/cyrus
unix  2      [ ACC ]     STREAM     LISTENING     18210  private/uucp
unix  2      [ ACC ]     STREAM     LISTENING     18214  private/ifmail
unix  2      [ ACC ]     STREAM     LISTENING     18218  private/bsmtp
unix  2      [ ACC ]     STREAM     LISTENING     18222  private/procmail
unix  2      [ ACC ]     STREAM     LISTENING     18103  public/cleanup
unix  2      [ ACC ]     STREAM     LISTENING     29378  /tmp/.esd/socket
unix  2      [ ACC ]     STREAM     LISTENING     18110  private/rewrite
unix  2      [ ACC ]     STREAM     LISTENING     18114  private/bounce
unix  2      [ ACC ]     STREAM     LISTENING     19518  /tmp/gpg-B6HMUH/S.gpg-agent
unix  2      [ ACC ]     STREAM     LISTENING     18118  private/defer
unix  2      [ ACC ]     STREAM     LISTENING     18146  private/trace
unix  2      [ ACC ]     STREAM     LISTENING     18150  private/verify
unix  2      [ ACC ]     STREAM     LISTENING     18154  public/flush
unix  2      [ ACC ]     STREAM     LISTENING     18158  private/proxymap
unix  2      [ ACC ]     STREAM     LISTENING     18162  private/smtp
unix  2      [ ACC ]     STREAM     LISTENING     18166  private/relay
unix  2      [ ACC ]     STREAM     LISTENING     18170  public/showq
unix  2      [ ACC ]     STREAM     LISTENING     18174  private/error
unix  2      [ ACC ]     STREAM     LISTENING     18178  private/discard
unix  2      [ ]         DGRAM                    5538   @udevd
unix  2      [ ACC ]     STREAM     LISTENING     18182  private/local
unix  2      [ ACC ]     STREAM     LISTENING     18186  private/virtual
unix  2      [ ACC ]     STREAM     LISTENING     19608  /tmp/ksocket-luca/kdeinit__0
unix  2      [ ACC ]     STREAM     LISTENING     18190  private/lmtp
unix  2      [ ACC ]     STREAM     LISTENING     18302  /var/run/xdmctl/dmctl/socket
unix  2      [ ACC ]     STREAM     LISTENING     19610  /tmp/ksocket-luca/kdeinit-:0
unix  2      [ ACC ]     STREAM     LISTENING     18194  private/anvil
unix  2      [ ACC ]     STREAM     LISTENING     18353  /var/run/xdmctl/dmctl-:0/socket
unix  2      [ ACC ]     STREAM     LISTENING     18449  /var/run/powersave_socket
unix  2      [ ACC ]     STREAM     LISTENING     18453  /var/run/powersave_clientsocket
unix  2      [ ACC ]     STREAM     LISTENING     24128  /tmp/orbit-luca/linc-1f65-0-1c01fdd3e3a3c
unix  2      [ ACC ]     STREAM     LISTENING     24214  /tmp/orbit-luca/linc-1f69-0-2a7357026f3a1
unix  2      [ ACC ]     STREAM     LISTENING     29348  /tmp/orbit-luca/linc-22f3-0-5344c666695c2
unix  3      [ ]         STREAM     CONNECTED     29943  /tmp/ksocket-luca/kwriteduX6Hb.slave-socket
unix  3      [ ]         STREAM     CONNECTED     29942
unix  3      [ ]         STREAM     CONNECTED     29914  /tmp/.famHBDl6Q
unix  3      [ ]         STREAM     CONNECTED     29913
unix  3      [ ]         STREAM     CONNECTED     29906  /tmp/.ICE-unix/dcop7040-1137527650
unix  3      [ ]         STREAM     CONNECTED     29905
unix  3      [ ]         STREAM     CONNECTED     29900  /tmp/.ICE-unix/7090
unix  3      [ ]         STREAM     CONNECTED     29899
unix  3      [ ]         STREAM     CONNECTED     29896  /tmp/.X11-unix/X0
unix  3      [ ]         STREAM     CONNECTED     29895
unix  3      [ ]         STREAM     CONNECTED     29858  /tmp/.ICE-unix/dcop7040-1137527650
unix  3      [ ]         STREAM     CONNECTED     29857
unix  3      [ ]         STREAM     CONNECTED     29852  /tmp/.ICE-unix/7090
unix  3      [ ]         STREAM     CONNECTED     29851
unix  3      [ ]         STREAM     CONNECTED     29850  /tmp/.X11-unix/X0
unix  3      [ ]         STREAM     CONNECTED     29849
unix  3      [ ]         STREAM     CONNECTED     29445  /tmp/.esd/socket
unix  3      [ ]         STREAM     CONNECTED     29444
unix  2      [ ]         STREAM                   29377
unix  3      [ ]         STREAM     CONNECTED     29351  /tmp/orbit-luca/linc-22f3-0-5344c666695c2
unix  3      [ ]         STREAM     CONNECTED     29350
unix  3      [ ]         STREAM     CONNECTED     29347  /tmp/orbit-luca/linc-1be8-0-3376fac620125
unix  3      [ ]         STREAM     CONNECTED     29346
unix  3      [ ]         STREAM     CONNECTED     29345  /tmp/.ICE-unix/7090
unix  3      [ ]         STREAM     CONNECTED     29344
unix  3      [ ]         STREAM     CONNECTED     29339  /tmp/.X11-unix/X0
unix  3      [ ]         STREAM     CONNECTED     29338
unix  2      [ ]         DGRAM                    25795
unix  3      [ ]         STREAM     CONNECTED     25027  /tmp/.ICE-unix/7090
unix  3      [ ]         STREAM     CONNECTED     25026
unix  3      [ ]         STREAM     CONNECTED     25025  /tmp/.X11-unix/X0
unix  3      [ ]         STREAM     CONNECTED     25024
unix  3      [ ]         STREAM     CONNECTED     25019  /tmp/.ICE-unix/dcop7040-1137527650
unix  3