10-18-2013 09:07 AM - edited 03-16-2019 07:58 PM
hi everyone, i have stumbled on an issue that i'm not sure how to diagnose
for a police department we have the phones setup in this fashion.
cisco 2821 with hard lines go into 2 fxo cards, 6 lines total
half of the lines are for 911
the rest are roll over lines for the primary number.
the numbers are plared into the router, and call control happens at our primary callmanager. which we're upgrading at the moment. we are currently on 6.1.5.10 -- upgrading to the latest and greatest version 9 soon, we just have to upgrade the unity connection and presence.
one other thing i'd like to mention about the voice ports is the ports are split in 3 way's
each pair of wire goes to three seperate devices on a phone block. one of them being the router, the other is the voice recorder that we have. it runs those phones on a 25 pair cable going to the server, lastly they are punched down on a patch panel as last effort incase for some reason the dispatch center looses power, phones can be still answered after analog phones are patched in.
the IOS on the 2821 is 12.4(24) T i know that i will have to upgrade this to the latest 15.1 software as we upgrade.
users are stating some calls are not being picked up at their handsets, or they hear no voice at the other end. looking at call legs i do see SelectedQoS=best-effort
that shouldnt be best effiort right?
my class maps are configured as :
class-map match-any VOICE
match ip dscp ef
match ip precedence 5
class-map match-any VOIP-SIG
match ip dscp cs3
policy map :
policy-map HIGH-BW-LINK
class VOICE
priority
class VOIP-SIG
bandwidth remaining percent 50
class class-default
bandwidth remaining percent 10
the router has the policy applied to the network interface outbound.
if needed here is my config:
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
hostname router
!
boot-start-marker
boot system flash:c2800nm-advipservicesk9-mz.124-24.T1.bin
boot-end-marker
!
logging message-counter syslog
logging buffered 50000
no logging console
enable secret xxxxxxxx
!
aaa new-model
!
aaa authentication login default group tacacs+ local
aaa authentication login Console group tacacs+ local enable
aaa authorization console
aaa authorization exec default group tacacs+ local
aaa authorization exec Telnet group tacacs+ if-authenticated
aaa authorization commands 1 default group tacacs+
aaa authorization commands 15 default group tacacs+ local
aaa accounting exec default
action-type start-stop
group tacacs+
!
aaa accounting commands 1 default
action-type start-stop
group tacacs+
!
aaa accounting commands 15 default
action-type start-stop
group tacacs+
!
aaa session-id common
!
dot11 syslog
ip source-route
!
ip cef
!
no ipv6 cef
ntp peer 10.1.1.68
!
multilink bundle-name authenticated
!
voice rtp send-recv
!
voice service voip
fax protocol cisco
h323
call start slow
!
voice class h323 1
h225 timeout tcp establish 3
!
voice-card 0
!
archive
log config
hidekeys
!
class-map match-any VOICE
match ip dscp ef
match ip precedence 5
class-map match-any VOIP-SIG
match ip dscp cs3
!
policy-map HIGH-BW-LINK
class VOICE
priority
class VOIP-SIG
bandwidth remaining percent 50
class class-default
bandwidth remaining percent 10
!
interface GigabitEthernet0/0
description **Voice Network
ip address 172.21.0.17 255.255.254.0
duplex auto
speed auto
h323-gateway voip bind srcaddr 172.21.0.17
service-policy output HIGH-BW-LINK
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
router eigrp xxxxx
network 172.21.0.0 0.0.1.255
no auto-summary
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 172.21.0.1
no ip http server
no ip http secure-server
!
no ip pim dm-fallback
ip pim autorp listener
!
logging history informational
logging facility local6
!
snmp-server community xxxxxx RW
snmp-server community xxxxxx RO
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps envmon
snmp-server enable traps isdn layer2
snmp-server enable traps isdn ietf
snmp-server enable traps ds0-busyout
snmp-server enable traps entity
snmp-server enable traps cpu threshold
snmp-server enable traps syslog
snmp-server enable traps voice poor-qov
tacacs-server host 10.1.1.22
tacacs-server directed-request
tacacs-server key xxxxxxxxxxx
!
control-plane
!
voice-port 0/0/0
no battery-reversal
no vad
connection plar opx immediate 2100
description 2042100
caller-id enable
!
voice-port 0/0/1
no vad
connection plar opx immediate 2101
description 2042101
caller-id enable
!
voice-port 0/0/2
no vad
connection plar opx immediate 2637
description 911 line 1
caller-id enable
!
voice-port 0/0/3
no vad
!
voice-port 0/1/0
no vad
connection plar opx immediate 2102
description 2042102
caller-id enable
!
voice-port 0/1/1
no vad
caller-id enable
!
voice-port 0/1/2
no vad
connection plar opx immediate 2913
description 911 line 2
caller-id enable
!
voice-port 0/1/3
no vad
connection plar opx immediate 2899
description 911 line 2
caller-id enable
!
mgcp fax t38 ecm
mgcp behavior g729-variants static-pt
!
dial-peer voice 90911 pots
destination-pattern 9911
port 0/0/0
forward-digits all
!
dial-peer voice 91911 pots
preference 1
destination-pattern 9911
port 0/0/1
forward-digits all
!
dial-peer voice 92911 pots
preference 2
destination-pattern 9911
port 0/0/2
forward-digits all
!
dial-peer voice 93911 pots
preference 3
destination-pattern 9911
port 0/0/3
forward-digits all
!
dial-peer voice 9500 pots
preference 5
destination-pattern 9.T
port 0/0/0
forward-digits all
!
dial-peer voice 9501 pots
preference 4
destination-pattern 9.T
port 0/0/1
forward-digits all
!
dial-peer voice 9502 pots
preference 3
destination-pattern 9.T
port 0/0/2
forward-digits all
!
dial-peer voice 9503 pots
preference 2
destination-pattern 9.T
port 0/0/3
forward-digits all
!
dial-peer voice 401 voip
preference 1
destination-pattern [0-8]...
session target ipv4:172.21.2.10
dtmf-relay h245-signal
codec g711ulaw
no vad
!
dial-peer voice 100 pots
description **Incoming dial peer
incoming called-number 2...
no digit-strip
!
dial-peer voice 402 voip
destination-pattern [0-8]...
session target ipv4:172.21.0.10
dtmf-relay h245-signal
codec g711ulaw
no vad
!
gateway
timer receive-rtp 1200
!
call-manager-fallback
max-conferences 4 gain -6
transfer-system full-consult
timeouts interdigit 4
ip source-address 172.21.0.17 port 2000
max-ephones 24
max-dn 24
system message primary SRST Fallback Active
system message secondary SRST Fallback
keepalive 15
access-code fxo 9
!
banner login ^CC
******************************************************
* WARNING --- WARNING --- WARNING --- WARNING *
* *
* !Unauthorized Access is Strictly Forbidden! *
* *
* Unauthorized access to networks, systems, hosts *
* or any other resources is strictly forbidden. *
* Violators will be prosecuted to the fullest extent *
* of the law. *
* *
******************************************************
^C
!
line con 0
password 7 03074F07
authorization exec Telnet
logging synchronous
login authentication Console
line aux 0
line vty 0 4
password xxxxxxxxxxx
authorization exec Telnet
logging synchronous
login authentication Local
length 0
transport input telnet ssh
line vty 5 15
password xxxxxxxxxxx
authorization exec Telnet
logging synchronous
login authentication Local
length 0
transport input telnet ssh
!
scheduler allocate 20000 1000
end
10-21-2013 12:28 AM
You can remove all QoS config, it is not needed.
Other than that update IOS and check again.
10-21-2013 05:42 AM
is it possible that the issue is happening on the carrier side then paolo? and why would the QoS config not be needed? i figured the policy was needed. keep in mind, this router only does that job and nothing more.
10-21-2013 02:16 PM
Unlikely it's carrier problem, but you can check with a buttset.
QoS on LAN definitely not needed.
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