Hi,

I write this in hopes that someone will review it and add it to the wiki.

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Attention: raspberry pi users

There is a bug in the compiler that ships with raspbian 7.6

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61509 for details

One of the symptoms of this bug is

2014-10-27 22:50:00.217016 [INFO] switch_ivr_originate.c:3501 Sending early media

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3590 Audio Codec Compare [SPEEX:105:8000:30:32000:1]/[PCMA:8:8000:20:64000:1]

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3590 Audio Codec Compare [SPEEX:103:16000:30:32000:1]/[PCMA:8:8000:20:64000:1]

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3590 Audio Codec Compare [PCMU:0:8000:30:32000:1]/[PCMA:8:8000:20:64000:1]

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3590 Audio Codec Compare [PCMA:8:8000:30:32000:1]/[PCMA:8:8000:20:64000:1]

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3590 Audio Codec Compare [GSM:3:8000:30:32000:1]/[PCMA:8:8000:20:64000:1]

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3590 Audio Codec Compare [G722:9:8000:30:32000:1]/[PCMA:8:8000:20:64000:1]

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3506 Set telephone-event payload to 101

2014-10-27 22:50:00.217016 [DEBUG] switch_core_media.c:3836 Set 2833 dtmf send/recv payload to 101

2014-10-27 22:50:00.217016 [ERR] mod_sofia.c:2219 CODEC NEGOTIATION ERROR.  SDP:

Notice the ptime is 30 and bits per second is 32000

This bug has been fixed in gcc 4.7 or higher

To upgrade gcc do

apt-get update

apt-get dist-upgrade

To verify the compiler version do

gcc --version

#version should be "gcc (Debian 4.7.2-5+rpi1) 4.7.2" or higher

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Sincererly,

Russell Treleaven

mailto:rtreleaven@bunnykick.ca