[asterisk-users] Problem with overhead paging with Alsa and OSS

[Carlos Chavez]

	I recently upgraded a server to Asterisk 1.4.22 with OpenR2.
Previously I was using 1.4.18.  It seems that 1.4.22 has a big bug using
chan_alsa.so for overhead paging.  After rebooting the server it would
work once or twice and then I just got an error on the CLI:

[Jan  7 10:35:14] ERROR[26164]: chan_alsa.c:693 alsa_read: Read error:
Resource temporarily unavailable

	I had to switch to chan_oss using the oss emulation in alsa but now the
customer complains that the voice is metallic sounding and intermittent.
What could cause this problem with the voice?  With 1.4.18 and chan_alsa
you could page from any phone (Zap and SIP) and the voice was always
clear.


-- 
Telecomunicaciones Abiertas de México S.A. de C.V.
Carlos Chávez Prats
Director de Tecnología
+52-55-91169161 ext 2001
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