One way audio on IPtouch

daweed · Post by **daweed** » 07 May 2010 02:20

Hi All,

Have a weird issue with IPtouch.

IPtouch is on different subnet than OXE but i can ping it form GD and GA:

After configured the iptouch i can make a few calls and audio is working fine on both ways but after that is no audio on the iptouch.

I can dial and connect to party but i cant hear them.

Need your help Guys and Gal,

The next thing i found out is that the IP phones on different subnets can communicates each other but only "digital to IPtouch" and "analog to iptouch" phone calls has one way audio

daweed · Post by **daweed** » 10 May 2010 09:24

very weird issue. i have no clue what is wrong... today i try call the IPtouch and was working fine but - both way audio was working! after 5 minutes i called again and the issue occurs.

any suggestions ?

Post by **tot3nkopf** » 10 May 2010 12:30

90% network issue (bandwidth, routing, etc)

daweed · Post by **daweed** » 12 May 2010 03:22

still have problem :/

my OXE has 3 static IP addresses:

mtcl - 192.168.44.176

eth0 Link encap:Ethernet HWaddr 00:80:9F:38:61:6C
inet addr:192.168.44.176 Bcast:192.168.44.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2867227 errors:0 dropped:0 overruns:0 frame:0
TX packets:1602164 errors:13 dropped:0 overruns:13 carrier:13
collisions:0 txqueuelen:100
Interrupt:12 Base address:0xf000

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.44.0 0.0.0.0 255.255.252.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.44.4 0.0.0.0 UG 0 0 0 eth0

[root@ root]# cat /etc/sysconfig/network
NETWORKING="yes"
FORWARD_IPV4="yes"
HOSTNAME=""
GATEWAY="192.168.44.4"

[root@ root]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
ONBOOT="yes"
BOOTPROTO="none"
IPADDR="192.168.44.176"
NETMASK="255.255.252.0"
GATEWAY="192.168.44.4"
NETWORK="192.168.44.0"
BROADCAST="192.168.44.255"

eMGD 192.168.44.175
eth0 Link encap:Ethernet HWaddr 00:80:9F:37:FC:B6
inet addr:192.168.44.175 Bcast:192.168.47.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1496 Metric:1
RX packets:75257 errors:0 dropped:0 overruns:0 frame:0
TX packets:50852 errors:1 dropped:0 overruns:1 carrier:1
collisions:0 txqueuelen:100
Interrupt:12 Base address:0xc000

[root@eMGD /root]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
127.0.0.0 0.0.0.0 255.255.255.255 UH 0 0 0 lo
192.168.44.0 0.0.0.0 255.255.252.0 U 0 0 0 eth0
0.0.0.0 192.168.44.4 0.0.0.0 UG 0 0 0 eth0

[root@eMGD /root]# cat /etc/sysconfig/network
NETWORKING=yes
FORWARD_IPV4=no
DEFRAG_IPV4=yes
GATEWAY=192.40.28.254
HOSTNAME=eMGD

I was trying to change the gateway in "network" to 192.168.44.4 but after restart is still the same. Why is not changing after restart ?

[root@eMGD /root]# cat /etc/sysconfig/local/ifcfg-eth0
DEVICE="eth0"
MACADDR="00809F37FCB6"
IPADDR="192.168.44.175"
NETMASK="255.255.252.0"
TFTPSERVER="192.168.44.176"
GATEWAY="192.168.44.4"
CALLSERVER="192.168.44.176"
CALLSERVER_RD="0.0.0.0"
CRYSTAL="1"
VLAN="-1"
PRIORITY="0"
DSCP="0"
COUPLER="0"
DUPLEX="1"
DOWNLOAD_TIMEOUT="1200"
[root@eMGD /root]#

eMGA 192.168.44.182

[root@eMGA /root]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:80:9F:5F:6A:0F
inet addr:192.168.44.182 Bcast:192.168.44.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1496 Metric:1
RX packets:81744 errors:0 dropped:0 overruns:0 frame:0
TX packets:55128 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:12 Base address:0xc000
[root@eMGA /root]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
127.0.0.0 0.0.0.0 255.255.255.255 UH 0 0 0 lo
192.168.44.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0

Even i add route manualy after restart is coming back to this. Also tryed add GATEWAY and NETMASK to ifcfg-eth0 but after reboot is set to 0.0.0.0 and netmask to 255.255.255.0 (should be 255.255.252.0)

[root@eMGA /root]# cat /etc/sysconfig/network
NETWORKING=yes
FORWARD_IPV4="no"
HOSTNAME="."
DOMAINNAME=
GATEWAYDEV="eth0"
NISDOMAIN=""
[root@eMGA /root]# cat /etc/sysconfig/local/ifcfg-eth0
DEVICE="eth0"
MACADDR="00809F5F6A0F"
IPADDR="192.168.44.182"
NETMASK="255.255.255.0"
TFTPSERVER="192.168.44.176"
GATEWAY="0.0.0.0"
CALLSERVER="192.168.44.176"
CALLSERVER_RD="0.0.0.0"
CRYSTAL="1"
VLAN="-1"
PRIORITY="0"
DSCP="46"
COUPLER="1"
DUPLEX="1"
DOWNLOAD_TIMEOUT="0"

About the bandwidth should i set this up just by "mgconfig" only in OXE or also in switch. Because now is set for auto negotiating

Some ping and traces

from IPtouch:

Trying 10.16.100.189...
Connected to 10.16.100.189.
Escape character is '^]'.

NoePhone > ipconfig
ipconfig
#ipconfig#
ip 10.16.100.189
router 10.16.100.248
mask 255.255.255.0
tftp 192.168.44.176
tftpport 69
cpu 192.168.44.176
mode dynamic
vlan 4095
use_vlan no
ipconfig OK

NoePhone > ping 192.168.44.176
ping 192.168.44.176
001-19:42:15.890 PCD : PING 192.168.44.176 (84=20+8+56 bytes)
001-19:42:15.970 PCD : 64 bytes from 192.168.44.176: icmp_seq=0. time=80. ms
001-19:42:17.040 PCD : 64 bytes from 192.168.44.176: icmp_seq=1. time=70. ms
001-19:42:18.110 PCD : 64 bytes from 192.168.44.176: icmp_seq=2. time=70. ms
001-19:42:19.180 PCD : 64 bytes from 192.168.44.176: icmp_seq=3. time=70. ms
001-19:42:20.180 PCD : ----192.168.44.176 PING Statistics----
001-19:42:20.180 PCD : 4 packets transmitted, 4 packets received, 0% packet loss
001-19:42:20.180 PCD : round-trip (ms) min/avg/max = 70/72/80
#ping#
ping OK

NoePhone > ping 192.168.44.182
ping 192.168.44.182
001-19:45:12.240 PCD : PING 192.168.44.182 (84=20+8+56 bytes)
001-19:45:12.320 PCD : 64 bytes from 192.168.44.182: icmp_seq=0. time=80. ms
001-19:45:13.390 PCD : 64 bytes from 192.168.44.182: icmp_seq=1. time=70. ms
001-19:45:14.460 PCD : 64 bytes from 192.168.44.182: icmp_seq=2. time=70. ms
001-19:45:15.570 PCD : 64 bytes from 192.168.44.182: icmp_seq=3. time=110. ms
001-19:45:16.570 PCD : ----192.168.44.182 PING Statistics----
001-19:45:16.570 PCD : 4 packets transmitted, 4 packets received, 0% packet loss
001-19:45:16.570 PCD : round-trip (ms) min/avg/max = 70/82/110
#ping#
ping OK
NoePhone > ping 192.168.44.175
ping 192.168.44.175
001-19:45:22.300 PCD : PING 192.168.44.175 (84=20+8+56 bytes)
001-19:45:22.400 PCD : 64 bytes from 192.168.44.175: icmp_seq=0. time=100. ms
001-19:45:23.470 PCD : 64 bytes from 192.168.44.175: icmp_seq=1. time=70. ms
001-19:45:24.540 PCD : 64 bytes from 192.168.44.175: icmp_seq=2. time=70. ms
001-19:45:25.610 PCD : 64 bytes from 192.168.44.175: icmp_seq=3. time=70. ms
001-19:45:26.610 PCD : ----192.168.44.175 PING Statistics----
001-19:45:26.610 PCD : 4 packets transmitted, 4 packets received, 0% packet loss
001-19:45:26.610 PCD : round-trip (ms) min/avg/max = 70/77/100
#ping#
ping OK

NoePhone > traceroute 192.168.44.176
traceroute 192.168.44.176
001-19:46:17.960 TRACERT: traceroute to 192.168.44.176, 10 hops max
001-19:46:17.970 TRACERT: 1 10.16.100.1 0ms 0ms 10ms
001-19:46:18.130 TRACERT: 2 172.21.69.105 50ms 50ms 50ms
001-19:46:18.360 TRACERT: 3 172.21.20.134 80ms 70ms 80ms
001-19:46:23.510 TRACERT: 4 * 192.168.44.176 70ms 80ms
#traceroute#
traceroute OK

from mtcl:

ping 10.16.100.189
PING 10.16.100.189 (10.16.100.189): 56 octets data
64 octets from 10.16.100.189: icmp_seq=0 ttl=61 time=78.2 ms
64 octets from 10.16.100.189: icmp_seq=1 ttl=61 time=76.5 ms
64 octets from 10.16.100.189: icmp_seq=2 ttl=61 time=75.8 ms
64 octets from 10.16.100.189: icmp_seq=3 ttl=61 time=76.8 ms
64 octets from 10.16.100.189: icmp_seq=4 ttl=61 time=75.8 ms
64 octets from 10.16.100.189: icmp_seq=5 ttl=61 time=88.1 ms

--- 10.16.100.189 ping statistics ---
6 packets transmitted, 6 packets received, 0% packet loss
round-trip min/avg/max = 75.8/78.5/88.1 ms
traceroute 10.16.100.189
traceroute to 10.16.100.189 (10.16.100.189), 30 hops max, 38 byte packets
1 192.168.44.234 (192.168.44.234) 1.753 ms 1.166 ms 1.167 ms
2 172.21.20.133 (172.21.20.133) 23.410 ms 22.907 ms 24.562 ms
3 172.21.69.106 (172.21.69.106) 75.188 ms 75.781 ms 75.101 ms
4 10.16.100.189 (10.16.100.189) 89.502 ms 77.202 ms 155.704 ms

Post by **tot3nkopf** » 03 Jun 2010 08:56

Pinging well all devices in different subnetworks doesn't mean for example that RTP flows are correct between the 2 networks.

mysticalself · Post by **mysticalself** » 01 Jul 2010 20:59

Could be a bad DSP/Compressor on the daughter board. The no audio calls might me hittting one of the bad compressors. Check which one with a compvisu on the coupler.