Frequent failure to open soundcard

Binary package hint: twinkle

With the last version of twinkle in edgy, I find that very often twinkle will fail to open the sound card. Calling is impossible then.

Mo 18:49:06
Critical: Cannot open ALSA driver for PCM playback: Device or resource busy

Mo 18:49:06
Critical: Failed to open sound card: Success

Here is my config file

# AUDIO
dev_ringtone=alsa:plughw:0,0
dev_speaker=alsa:plughw:0,0
dev_mic=alsa:plughw:0,0
au_reduce_noise_mic=yes
alsa_play_period_size=128
alsa_capture_period_size=32
oss_fragment_size=128

# LOG
log_max_size=5
log_show_sip=yes
log_show_stun=yes
log_show_memory=yes
log_show_debug=no

# GUI
gui_use_systray=yes
gui_hide_on_close=yes
gui_auto_show_incoming=no
gui_auto_show_timeout=10

# Address book
ab_show_sip_only=no
ab_lookup_name=yes
ab_override_display=yes
ab_lookup_photo=yes

# Call history
ch_max_size=50

# Services
call_waiting=yes
hangup_both_3way=yes

# Startup
[removed]

# Network
sip_udp_port=5060
rtp_port=8000

# Ring tones
play_ringtone=yes
ringtone_file=
play_ringback=yes
ringback_file=

# Persistent user interface state
[removed]