[cisco-voip] SRST issue on cs 2800 series

Wed Mar 5 03:35:59 EST 2008

Hi 

i have an issue with SRST mode whenever the WAN link fails and comes back up, basically the SRST mode kicks in properly but when the WAN link is up again some phones remain for ever stuck in SRST fallback mode, the work around today is power off/on the phone so that they register again with our SIP platform from internet access. Here is the sh run fyi, appreciate your assistance and input on this issue thanks.

MG-VSMRUT02#sh run
Building configuration...

Current configuration : 5138 bytes
!
! Last configuration change at 17:45:56 MRU Tue Mar 4 2008
! NVRAM config last updated at 17:18:22 MRU Wed Feb 13 2008
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime
service password-encryption
!
hostname MG-VSMRUT02
!
boot-start-marker
boot system flash c2800nm-ipvoice-mz.123-14.T7.bin
boot-end-marker
!
logging buffered 4096 debugging
enable secret 5 
!
no aaa new-model
!
resource policy
!
clock timezone MRU 3
network-clock-participate wic 0 
ip subnet-zero
!
!
ip cef
no ip dhcp use vrf connected
!
!
ip name-server 62.189.220.91
ip name-server 62.189.220.88
ip name-server 57.73.25.91
no ftp-server write-enable
isdn switch-type primary-net5
!
voice-card 0
 no dspfarm
!
!
voice call send-alert
voice call disc-pi-off
voice call carrier capacity active
voice rtp send-recv
!
voice service voip 
 fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711alaw
 sip
  no call service stop
!
!
voice class codec 1
 codec preference 1 g711alaw
 codec preference 2 g711ulaw
 codec preference 3 g729r8
!
!
voice translation-rule 8
 rule 1 /^1/ /01/ type international international
 rule 2 /^2/ /02/ type international international
 rule 3 /^3/ /03/ type international international
 rule 4 /^4/ /04/ type international international
 rule 5 /^5/ /05/ type international international
 rule 6 /^6/ /06/ type international international
 rule 7 /^7/ /07/ type international international
 rule 8 /^8/ /08/ type international international
 rule 9 /^9/ /09/ type international international
 rule 10 /^\(.*\)/ /9\1/ type national national
 rule 11 /^\(.*\)/ /90\1/ type subscriber subscriber
!
voice translation-rule 10
 rule 1 /^9/ //
 rule 2 /^0/ /020/
!
voice translation-rule 11
 rule 1 /^09/ /609/
!
!
voice translation-profile PREFIXINT
 translate called 11
!
voice translation-profile SRST-OUT
 translate called 10
!
!
dial-control-mib retain-timer 20160
dial-control-mib max-size 600
!         
!
controller E1 0/0/0
 framing NO-CRC4 
 pri-group timeslots 1-31
 description *** +230 20609 00-99 ***
!
controller E1 0/0/1
!
!
!
interface GigabitEthernet0/0
 ip address 10.143.1.2 255.255.255.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 description to_isp_voice
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0:15
 no ip address
 isdn switch-type primary-net5
 isdn overlap-receiving
 isdn incoming-voice voice
 isdn send-alerting
 isdn sending-complete
 no cdp enable
!
ip default-gateway 10.143.1.1
ip classless
ip route 0.0.0.0 0.0.0.0 10.143.1.1
!
no ip http server
!
snmp-server community 
snmp-server location Mauritius
snmp-server contact 
snmp-server enable traps tty
snmp-server enable traps isdn call-information
snmp-server enable traps isdn layer2
snmp-server enable traps isdn chan-not-avail
snmp-server enable traps isdn ietf
snmp-server enable traps voice poor-qov
!
!         
!
control-plane
!
!
!
voice-port 0/0/0:15
 playout-delay maximum 170
 playout-delay nominal 80
 playout-delay minimum low
 no comfort-noise
 bearer-cap 3100Hz
!
!
no mgcp piggyback message
!
!
!
dial-peer voice 1234 pots
 tone ringback alert-no-PI
 description Incoming PSTN
 translation-profile incoming PREFIXINT
 incoming called-number 09..
 direct-inward-dial
 port 0/0/0:15
!
dial-peer voice 1000 voip
 tone ringback alert-no-PI
 huntstop
 service session
 destination-pattern 609..
 signaling update from gtd all
 rtp payload-type cisco-codec-fax-ind 124
 voice-class codec 1
 session protocol sipv2
 session target sip-server
 dtmf-relay sip-notify cisco-rtp rtp-nte
 fax-relay ecm disable
 fax rate 7200 bytes 48
 fax nsf 000000
 fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw
 no vad
!
dial-peer voice 4321 pots
 tone ringback alert-no-PI
 description Outgoing PSTN
 translation-profile outgoing SRST-OUT
 destination-pattern .T
 progress_ind setup enable 3
 progress_ind alert enable 8
 port 0/0/0:15
!
sip-ua 
 max-forwards 15
 sip-server dns:lon-ext.voip.x
!
!
call-manager-fallback
 max-conferences 8 gain -6
 transfer-system full-consult
 timeouts interdigit 5
 ip source-address 10.143.1.2 port 2000
 max-ephones 30
 max-dn 40 dual-line preference 1
 system message primary SRST Mode Activated
 dialplan-pattern 1 09.. extension-length 5 extension-pattern 609..
 transfer-pattern 09..
 no huntstop
 time-zone 34
 time-format 24
 date-format dd-mm-yy
!
!
!
scheduler allocate 20000 1000
ntp clock-period 17179876
ntp server 64.235.47.142
ntp server 62.243.203.70
!
end

MG-VSMRUT02#sh ver
Cisco IOS Software, 2800 Software (C2800NM-IPVOICE-M), Version 12.3(14)T7, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Wed 22-Mar-06 18:40 by pwade

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
ROM: Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(3g), RELEASE SOFTWARE (fc2)

MG-VSMRUT02 uptime is 28 weeks, 6 days, 17 hours, 22 minutes
System returned to ROM by power-on
System restarted at 17:25:07 MRU Wed Aug 15 2007
System image file is "flash:c2800nm-ipvoice-mz.123-14.T7.bin"

Cisco 2851 (revision 53.51) with 251904K/10240K bytes of memory.
Processor board ID FCZ111874JW
2 Gigabit Ethernet interfaces
31 Serial interfaces
2 Channelized E1/PRI ports
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

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