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VOIP intermiittent issues - works fine after router restart

Hi friends,

There are two offices located around 750 miles apart and they communicate over VOIP. Each location has a 1751V router with VIC-2FXS card and IOS version being 12.3(10).

When location 1 tries to call location 2, it works sometimes and sometimes, it requires a router restart at location 2 for it to work.

Has anyone come across this problem? Any ideas suggested in this regard would be much appreciated.

Thanks a lot Gautam

Reply to
gautamzone
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You'll may want to know the congiguration at both the ends. This has been pasted below for your reference. Sorry for the lengthy post

Location 1

sh run Building configuration...

Current configuration : 4269 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname csecho1 ! boot-start-marker boot-end-marker ! enable secret 5 $1$furb$t4rBJoZ3QnlCiGG1pameC/ ! username csecmum password 0 csecodin username csechyd password 0 csecodin username csecblr password 0 csecodin memory-size iomem 20 mmi polling-interval 60 no mmi auto-configure no mmi pvc mmi snmp-timeout 180 --More--  voice-card 2 ! no aaa new-model ip subnet-zero ip cef ! ! ! no ftp-server write-enable isdn switch-type basic-net3 ! ! ! ! ! ! ! ! ! ! ! ! ! --More--  class-map match-any voice-traffic match access-group 101 ! ! policy-map cholavoice class voice-traffic priority 16 set ip precedence 5 class class-default fair-queue ! ! ! ! interface Multilink1 description link to Mumbai ip address 192.168.1.1 255.255.255.252 service-policy output cholavoice ip tcp header-compression iphc-format no cdp enable ppp multilink ppp multilink fragment delay 10 ppp multilink interleave --More--   ppp multilink group 1 ip rtp header-compression iphc-format ! interface Multilink11 description link to csecho2 ip address 192.168.11.1 255.255.255.252 service-policy output cholavoice ip tcp header-compression iphc-format no cdp enable ppp multilink ppp multilink fragment delay 10 ppp multilink interleave ppp multilink group 11 ip rtp header-compression iphc-format ! interface FastEthernet0/0 no ip address shutdown speed auto ! interface Serial0/0 description link to mumbai bandwidth 64 --More--   no ip address service-policy output cholavoice encapsulation ppp ppp multilink ppp multilink group 1 ! interface Serial0/1 description link to csecho2 chennai bandwidth 2048 no ip address service-policy output cholavoice encapsulation ppp clockrate 2000000 ppp multilink ppp multilink group 11 ! interface BRI1/0 description Ph.No 25344660 bandwidth 60 no ip address encapsulation ppp no ip mroute-cache dialer rotary-group 1 --More--   dialer-group 1 isdn switch-type basic-net3 ! interface Dialer1 bandwidth 60 ip address 192.168.101.1 255.255.255.248 encapsulation ppp dialer in-band dialer map ip 192.168.101.2 name csecmum class choladial1 02222808820 dialer map ip 192.168.101.3 name csechyd class choladial1 04023392570 dialer map ip 192.168.101.4 csecblr dialer hold-queue 10 dialer load-threshold 255 inbound dialer-group 1 no peer default ip address ppp callback accept ppp authentication chap pap ! ip classless ip route 172.16.0.0 255.255.0.0 Multilink11 ip route 192.9.9.0 255.255.255.0 192.168.101.3 ip route 192.168.0.0 255.255.255.0 Multilink1 ip route 192.168.0.0 255.255.255.0 192.168.101.2 100 --More--  ip route 192.168.2.0 255.255.255.0 Multilink11 ip route 192.168.3.0 255.255.255.0 Multilink11 ip route 192.168.80.0 255.255.255.0 192.168.101.4 no ip http server ! ! map-class dialer choladial1 dialer callback-server username access-list 1 permit any access-list 101 permit udp any any range 16384 32776 access-list 101 permit tcp any any eq 1720 access-list 101 permit tcp any eq 1720 any dialer-list 1 protocol ip permit snmp-server community public RO snmp-server trap link ietf snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart snmp-server enable traps tty snmp-server host 172.16.0.151 public ! voice-port 2/0 cptone IN description Phone Num 441 ! --More--  voice-port 2/1 cptone IN description Phone No. 442 ! ! ! dial-peer voice 1 pots destination-pattern 441 port 2/0 ! dial-peer voice 2 pots destination-pattern 442 port 2/1 ! dial-peer voice 3 voip destination-pattern 221 session target ipv4:192.168.1.2 ! dial-peer voice 4 voip destination-pattern 222 session target ipv4:192.168.1.2 ! dial-peer voice 5 voip --More--   destination-pattern 401 session target ipv4:192.168.2.2 ! dial-peer voice 6 voip destination-pattern 402 session target ipv4:192.168.2.2 ! dial-peer voice 7 voip destination-pattern 443 session target ipv4:192.168.11.2 ! dial-peer voice 8 voip destination-pattern 444 session target ipv4:192.168.11.2 ! dial-peer voice 9 voip destination-pattern 801 session target ipv4:192.168.3.2 ! dial-peer voice 10 voip destination-pattern 802 session target ipv4:192.168.3.2 ! --More--  ! line con 0 line aux 0 line vty 0 4 password cholasec login ! end

csecho1#sh ver Cisco Internetwork Operating System Software IOS (tm) C1700 Software (C1700-IPVOICE-M), Version 12.3(10), RELEASE SOFTWARE (fc3) Copyright (c) 1986-2004 by cisco Systems, Inc. Compiled Tue 17-Aug-04 06:57 by kellythw Image text-base: 0x8000816C, data-base: 0x8140A2B0

ROM: System Bootstrap, Version 12.2(1r)XE1, RELEASE SOFTWARE (fc1)

csecho1 uptime is 3 weeks, 22 hours, 55 minutes System returned to ROM by reload System image file is "flash:c1700-ipvoice-mz.123-10.bin"

cisco 1751-V (MPC860P) processor (revision 0x300) with 81920K/16384K bytes of memory. Processor board ID FOC07312HVG (3906250814), with hardware revision

0000 MPC860P processor: part number 5, mask 2 Bridging software. X=2E25 software, Version 3.0.0. Basic Rate ISDN software, Version 1.1. 1 FastEthernet/IEEE 802.3 interface(s) 2 Serial(sync/async) network interface(s) 1 ISDN Basic Rate interface(s) --More--  2 Voice FXS interface(s) 32K bytes of non-volatile configuration memory. 32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

csecho1#

Location 2

sh run Building configuration...

Current configuration : 2587 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname csecmum ! boot-start-marker boot-end-marker ! enable secret 5 $1$NL0K$zq.rf7PwO/Tudp0TaEMJd/ ! username csecho1 password 0 csecodin memory-size iomem 20 voice-card 2 ! no aaa new-model ip subnet-zero ip cef ! --More--  ! ! ! no ip domain lookup no ftp-server write-enable isdn switch-type basic-net3 ! ! ! ! ! ! ! ! ! ! ! ! ! ! class-map match-any voice-traffic match access-group 101 ! --More--  ! policy-map cholavoice class voice-traffic priority 16 set ip precedence 5 class class-default fair-queue ! ! ! ! interface Multilink1 ip address 192.168.1.2 255.255.255.252 service-policy output cholavoice ip tcp header-compression iphc-format no cdp enable ppp multilink ppp multilink fragment delay 10 ppp multilink interleave ppp multilink group 1 ip rtp header-compression iphc-format ! interface FastEthernet0/0 --More--   ip address 192.168.0.100

255.255.255.0 speed auto full-duplex ! interface BRI0/0 bandwidth 60 ip address 192.168.101.2 255.255.255.248 encapsulation ppp dialer map ip 192.168.101.1 name csecho1 04425344660 dialer load-threshold 255 either dialer-group 1 isdn switch-type basic-net3 ppp callback request ppp authentication chap pap ! interface Serial1/0 bandwidth 64 no ip address service-policy output cholavoice encapsulation ppp down-when-looped ppp multilink ppp multilink group 1 --More--  ! ip classless ip route 0.0.0.0 0.0.0.0 Multilink1 ip route 0.0.0.0 0.0.0.0 192.168.101.1 100 ip route 172.16.0.0 255.255.0.0 Multilink1 ip route 172.16.0.0 255.255.0.0 192.168.101.1 100 no ip http server ! ! access-list 1 permit any access-list 101 permit udp any any range 16384 32776 access-list 101 permit tcp any eq 1720 any access-list 101 permit tcp any any eq 1720 dialer-list 1 protocol ip permit ! control-plane ! ! ! voice-port 2/0 cptone IN description connection to phone 220 at mumbai ! --More--  voice-port 2/1 cptone IN description connection to phone 221 at mumbai ! ! ! dial-peer voice 1 pots destination-pattern 221 port 2/0 ! dial-peer voice 2 pots destination-pattern 222 port 2/1 ! dial-peer voice 3 voip destination-pattern 441 session target ipv4:192.168.1.1 ! dial-peer voice 4 voip destination-pattern 442 session target ipv4:192.168.1.1 ! dial-peer voice 5 voip --More--   destination-pattern 443 session target ipv4:192.168.11.2 ! dial-peer voice 6 voip destination-pattern 444 session target ipv4:192.168.11.2 ! ! line con 0 line aux 0 line vty 0 4 password cisco login length 0 ! no scheduler allocate ! end

csecmum#

Reply to
gautamzone

Before restarting the 2nd router check to see if the PVDM and/or FXS card is being recognised. I had a problem with PVDM on a 1751 recently whereby the FXO card would 'dissapear' and require a reboot - this was caused by a faulty PVDM .

do a "sh diag" to check all boards/PVDMs are being recognised. Also there is a PVDM OK LED on the rear of the unit which should be lit.

p.

Reply to
wonderboy

Suggest you enable internal syslogging so you can check for any erro messages that maybe occuring

conf t logging buffer 10000 debug no logging console exit wri mem

Check out bug CSCsd04075

Bug Details

Headline FXS stuck with ASSERTION FAILED : ../voip/ccvtsp/vtsp.c Product IOS Feature OTHERS Components Duplicate of Severity 1 Severity help Status Open Status help First Found-in Version 12.3(06d) All affected versions First Fixed-in Version Version help Release Notes

A Cisco IOS Voice Over IP Gateway terminating fax calls may have it's voice-ports lock up and not accept any new calls.

Symptoms:

-------------- The following messages *may* be seen (but not mandatory) on the console or syslog (if applicable):

%HPI-3-CODEC_NOT_LOADED: channel:2/0/0 (171) DSP ID:0x1, command failed as codec not loaded 0

- Traceback= 615D2FA8 615C8528 617D5044 617D5258 61BBCD44 61BBD764

617BAE88 617BBD38 6138720C

Work-around:

----------------- Disabling T.38 resolves the issue, therefore, either use Cisco fax-relay or fax passthrough if possible.

Reply to
Merv

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