asterisk codecs.conf for use speex codec

os : centos 6.5
asterisk : 11.6.1
requirements : speex-1.2rc1 installed & asterisk remake

*Table 4:* Quality versus bit-rate
Mode Bit-rate (bps) mflops Quality/description
0 250 N/A No transmission (DTX)
1 2,150 6 Vocoder (mostly for comfort noise)
2 5,950 9 Very noticeable artifacts/noise, good intelligibility
3 8,000 10 Artifacts/noise sometimes noticeable
4 11,000 14 Artifacts usually noticeable only with headphones
5 15,000 11 Need good headphones to tell the difference
6 18,200 17.5 Hard to tell the difference even with good headphones
7 24,600 14.5 Completely transparent for voice, good quality music
8 3,950 10.5 Very noticeable artifacts/noise, good intelligibility

vi /etc/asterisk/codecs.conf

[speex]
;0-10
quality => 4
;0-10
complexity => 4
; true / false
enhancement => true
; true / false
vad => false
; true / false
vbr => false
; 0 = off, otherwise, target bitrate in bps
abr => 8000
;0-10
vbr_quality => 5
; true / false
dtx => false

CLI>reload

origin : http://lists.digium.com/pipermail/asterisk-users/2005-January/073992.html

two nic's port forwarding in iptables

os : centos 6.5
iptables : 1.4.7

forward dest port : 9090
forward dest ip : 192.168.0.100
my machine lan : eth0 : 192.168.0.200
my machine wan : eth1 : 100.100.100.100


[ my machine work ]

vi /etc/sysctl.conf
net.ipv4.ip_forward = 1

sysctl -p /etc/sysctl.conf

cat /proc/sys/net/ipv4/ip_forward

5222, 9090, 8766

iptables -A PREROUTING -t nat -i eth1 -p tcp --dport 9090 -j DNAT --to 192.168.0.100:9090
iptables -A FORWARD -p tcp -d 192.168.0.100 --dport 9090 -j ACCEPT

iptables -t nat -A POSTROUTING -j MASQUERADE -o eth0

/etc/init.d/iptables save

[ forword rule delete ]

iptables -L FORWARD --line-numbers

Chain FORWARD (policy ACCEPT)
num  target     prot opt source               destination
1    ACCEPT     tcp  --  anywhere             192.168.0.100       tcp dpt:xmpp-client
2    ACCEPT     tcp  --  anywhere             192.168.0.100       tcp dpt:websm

iptables -D FORWARD 2

## iptables all delete
iptables -F

kamailio logging config in centos

vi /etc/rsyslog.conf
- edit & add
local0.* -/var/log/kamailio/kamailio.log

vi /etc/logrotate.d/kamailio
- new
/var/log/kamailio/kamailio.log {
    missingok
    size=50M
    create 0644 root root
    postrotate
  /bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null || true
    endscript
}

reboot

/usr/local/sbin/kamctl start
/usr/local/sbin/kamailio -ddddddddddddddd -D 2

odbc use with asterisk

asterisk build 하기전에 아래 요소들이 필요 하다
없으면 'odbc' but the engine is not available 요딴 에러가 발생 한다

yum install unixODBC unixODBC-devel libtool-ltdl libtool-ltdl-devel

ngrep capture

ngrep -d eth1 -itq -W byline
ngrep -W byline -d eth0 port 5060
ngrep -W byline -d eth0 port 5060 -O capture_file
ngrep -W byline -d eth0 INVITE

mysql ui tool for mac

http://www.sequelpro.com/

linux 에서 추가 설치했던 lan driver 삭제

머, 정확히는 잘 모르겠지만,
기존에 쓰던 via-rhine lan card 가 장착된 pc
여기서 realtek lan card 를 하나 더 장착, 8139too 로 올라온다
근데 이넘이 드라이버는 다 올라온거 같은데, rx 쪽이 전부 error 로 떨어진다
shutdown 하고, realtek 빼고, 다른 realtek 장착

lsmod | grep 8139 하니, 8139too, 8139cp 요렇게 2개 보인다

ifconfig 하면 기존 via card 만 보인다

그래서 기존 꺼 삭제 rmmod -f 8139too

[root@localhost network-scripts]# lspci | grep -i Ethernet
00:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)

이제 2개가 보이는데, ifconfig 하면 eth1은 없고, eth2 가 생겼다

vi /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.

# PCI device 0x1106:0x3065 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:16:ec:05:b9:fe", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x10ec:0x8139 (8139too)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:c0:26:73:a4:03", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x10ec:0x8139 (8139too)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:ee:b1:02:bf:3b", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"

rm /etc/udev/rules.d/70-persistent-net.rules

reboot 후 다시 정리되서 eth0, eth1 이 보이고, 설정데로 ping 도 응답하기 시작 했다

아래의 부팅 후 dmesg

[root@localhost ~]# dmesg | grep eth
eth0: RealTek RTL8139 at 0xf820c000, 00:ee:b1:02:bf:3b, IRQ 16
udev: renamed network interface eth0 to eth1
eth0: VIA Rhine II at 0xf6011000, 00:16:ec:05:b9:fe, IRQ 23.
eth0: MII PHY found at address 1, status 0x786d advertising 05e1 Link 45e1.
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
eth1: link up, 100Mbps, full-duplex, lpa 0x45E1
eth0: no IPv6 routers present
eth1: no IPv6 routers present

Check linux distributions

[root@localhost ~]# find /etc/*-release | xargs cat
CentOS release 6.3 (Final)
CentOS release 6.3 (Final)
CentOS release 6.3 (Final)
[root@localhost ~]#