[cisco-voip] Intermittent audio using Cisco 7200 as a Voice Gateway

Kevin Thorngren kevint at cisco.com
Sat Apr 30 19:29:51 EDT 2005


Hi Jim,

Maybe you are having a problem with the DSPs in the 7200.  see if this  
page helps:
http://www.cisco.com/en/US/tech/tk652/tk701/ 
technologies_tech_note09186a008011f263.shtml

Kevin
On Apr 30, 2005, at 2:59 PM, Jim Brunetti wrote:

> We are having a very strange problem when using a Cisco 7200 as a Voice
> Gateway to the PSTN.  We have some 7960 phones and CCM version 4.02  
> (using
> H.323).  Calls internally work fine.  Calls externally worked great  
> for a
> couple of months and then suddenly we started seeing some problems.   
> Calls
> would connect via the PSTN fine, but we would have one-way audio, or  
> no way
> audio.  An Ethereal capture shows that RTP is working exactly as it is
> supposed to be between the 7200 H.323 gateway and the IP phone even  
> when we
> have audio problems.
>
> If we reboot the 7200 calls may work anywhere from 5 minutes to an  
> hour, then
> they will start to fail, and then anywhere from 20 minutes to 2 hours  
> later,
> they start working again for a while.  Cisco has sent us brand new DSP  
> cards
> and we have moved up the IOS chain to 12.3.8T and still see exactly  
> the same
> behavior.
>
> The 7200 connects via PRI to a SONUS Gateway which connects via PRI  
> directly
> to the PSTN.
>
> It is almost like the 7200 is periodically doing too good a job of echo
> cancellation. :-)
>
> Attached is the config.  Any suggestions (other than upgrade to a  
> 3845) would
> be appreciated.
>
>
> ENV1.DCAT#wr t
> Building configuration...
>
> Current configuration : 9273 bytes
> !
> ! No configuration change since last restart
> !
> version 12.3
> no service pad
> service timestamps debug datetime msec
> service timestamps log datetime msec
> service password-encryption
> !
> hostname ENV1.DCAT
> !
> boot-start-marker
> boot system disk0:c7200-js-mz.123-8.T8.bin
> boot-end-marker
> !
> card type t1 2
> card type t1 3
> logging buffered 64000 debugging
>
> !
> clock timezone GMT 0
> frame-clock-select 1 T1 2/0
> dspint DSPfarm2/0
>  load-interval 30
> !
> dspint DSPfarm3/0
>  load-interval 30
> !
> no aaa new-model
> ip subnet-zero
> !
> !
> no ip domain lookup
> !
> !
> no ip cef
> isdn switch-type primary-ni
> !
> !
> voice call send-alert
> voice rtp send-recv
> !
> voice service voip
>  h323
> !
> !
> voice class codec 1
>  codec preference 1 g711ulaw
>  codec preference 2 g729r8
> !
> !
> !
> !
> !
> !
> !
> !
> voice translation-rule 1
>  rule 1 /^1/ // type any unknown plan any unknown
>  rule 2 /^011/ /011/ type any international plan any national
> !
> voice translation-rule 2
>  rule 1 /^1/ // type any national plan any isdn
>  rule 2 /^[2-9]/ // type any national plan any isdn
> !
> !
> voice translation-profile B
>  translate called 47
> !
> voice translation-profile B866
>  translate called 10
> !
> voice translation-profile type
>  translate called 2
> !
> !
> !
> !
> controller T1 2/0
>  framing esf
>  linecode b8zs
>  cablelength long 0db
>  pri-group timeslots 1-24
> !
> controller T1 2/1
>  framing esf
>  linecode b8zs
>  cablelength long 0db
>  pri-group timeslots 1-24
> !
> controller T1 3/0
>  framing esf
>  linecode b8zs
>  cablelength long 0db
>  pri-group timeslots 1-24
> !
> controller T1 3/1
>  framing esf
>  linecode b8zs
>  cablelength long 0db
>  pri-group timeslots 1-24
> !
> translation-rule 1
>  Rule 0 ^0 0 ANY international
>  Rule 1 ^1 1 ANY international
>  Rule 2 ^2 12 ANY international
>  Rule 3 ^3 13 ANY international
>  Rule 4 ^4 14 ANY international
>  Rule 5 ^5 15 ANY international
>  Rule 6 ^6 16 ANY international
>  Rule 7 ^7 17 ANY international
>  Rule 8 ^8 18 ANY international
>  Rule 9 ^9 19 ANY international
> !
> !
> translation-rule 2
>  Rule 0 ^0 0 international national
>  Rule 1 ^1 1 international national
>  Rule 2 ^2 2 international national
>  Rule 3 ^3 3 international national
>  Rule 4 ^4 4 international national
>  Rule 5 ^5 5 international national
>  Rule 6 ^6 6 international national
>  Rule 7 ^7 7 international national
>  Rule 8 ^8 8 international national
>  Rule 9 ^9 9 international national
> !
> !
> translation-rule 3
>  Rule 0 ^0 0 ANY international
>  Rule 1 ^1 0111 ANY international
>  Rule 2 ^2 0112 international international
>  Rule 3 ^3 0113 international international
>  Rule 4 ^4 0114 international international
>  Rule 5 ^5 0115 international international
>  Rule 6 ^6 0116 international international
>  Rule 7 ^7 0117 international international
>  Rule 8 ^8 0118 international international
>  Rule 9 ^9 0119 international international
> !
> !
> translation-rule 4
>  Rule 1 ^12 2 ANY national
>  Rule 2 ^13 3 ANY national
>  Rule 3 ^14 4 ANY national
>  Rule 4 ^15 5 ANY national
>  Rule 5 ^16 6 ANY national
>  Rule 6 ^17 7 ANY national
>  Rule 7 ^18 8 ANY national
>  Rule 8 ^19 9 ANY national
>  Rule 9 ^0114 4 ANY international
> !
> !
> translation-rule 6
>  Rule 0 ^0 10190460110 ANY international
>  Rule 1 ^1 10190460111 ANY international
>  Rule 2 ^2 10190460112 ANY international
>  Rule 3 ^3 10190460113 ANY international
>  Rule 4 ^4 10190460114 ANY international
>  Rule 5 ^5 10190460115 ANY international
>  Rule 6 ^6 10190460116 ANY international
>  Rule 7 ^7 10190460117 ANY international
>  Rule 8 ^8 10190460118 ANY international
>  Rule 9 ^9 10190460119 ANY international
> !
> !
> translation-rule 47
>  Rule 0 ^0 10190460110 ANY international
>  Rule 1 ^1 10190460111 ANY international
>  Rule 2 ^2 10190460112 ANY international
>  Rule 3 ^3 10190460113 ANY international
>  Rule 4 ^4 10190460114 ANY international
>  Rule 5 ^5 10190460115 ANY international
>  Rule 6 ^6 10190460116 ANY international
>  Rule 7 ^7 10190460117 ANY international
>  Rule 8 ^8 10190460118 ANY international
>  Rule 9 ^9 10190460119 ANY international
> !
> !
> translation-rule 10
>  Rule 0 ^8668868 8 ANY subscriber
>  Rule 1 ^18668868 8 ANY subscriber
>  Rule 2 8668868500 8500 ANY national
> !
> !
> translation-rule 5
>  Rule 1 ^0112 2 ANY international
>  Rule 2 ^0113 3 ANY international
>  Rule 3 ^0114 4 ANY international
>  Rule 4 ^0115 5 ANY international
>  Rule 5 ^0116 6 ANY international
>  Rule 6 ^0117 7 ANY international
>  Rule 7 ^0118 8 ANY international
>  Rule 8 ^0119 9 ANY international
> !
> !
> !
> !
> interface Loopback0
>  no ip address
>  no ip route-cache
> !
> interface FastEthernet0/0
>  ip address 64.47.58.51 255.255.255.248
>  no ip route-cache
>  load-interval 30
>  duplex full
> !
> interface FastEthernet1/0
>  ip address 10.99.214.98 255.255.255.248
>  ip route-cache same-interface
>  load-interval 30
>  duplex full
>  h323-gateway voip interface
>  h323-gateway voip bind srcaddr 10.99.214.98
> !
> interface Serial2/0:23
>  no ip address
>  no logging event link-status
>  isdn switch-type primary-ni
>  isdn incoming-voice voice
>  no cdp enable
> !
> interface Serial2/1:23
>  no ip address
>  no logging event link-status
>  isdn switch-type primary-ni
>  isdn incoming-voice voice
>  no cdp enable
> !
> interface Serial3/0:23
>  no ip address
>  no logging event link-status
>  isdn switch-type primary-ni
>  isdn incoming-voice voice
>  no cdp enable
> !
> interface Serial3/1:23
>  no ip address
>  no logging event link-status
>  isdn switch-type primary-ni
>  isdn incoming-voice voice
>  no cdp enable
> !
> ip classless
> ip route 0.0.0.0 0.0.0.0 64.47.58.49
> ip route 2.0.0.0 255.128.0.0 10.99.214.97
> ip route 2.230.0.0 255.255.0.0 10.99.214.97
> ip route 10.0.0.0 255.0.0.0 10.99.214.97
> no ip http server
> !
> !
> !
> no logging trap
> !
> !
> !
> !
> control-plane
> !
> !
> !
> voice-port 2/0:23
>  echo-cancel coverage 32
> !
> voice-port 2/1:23
>  echo-cancel coverage 32
> !
> voice-port 3/0:23
>  echo-cancel coverage 32
> !
> voice-port 3/1:23
>  echo-cancel coverage 32
> !
> !
> !
> dial-peer voice 1 voip
>  destination-pattern 9255987000
>  progress_ind setup enable 3
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:10.251.80.42
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  ip qos dscp cs5 media
>  no vad
> !
> dial-peer voice 3 voip
>  destination-pattern 19255987000
>  progress_ind setup enable 3
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:10.251.80.42
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  ip qos dscp cs5 media
>  no vad
> !
> dial-peer voice 8 voip
>  translation-profile incoming B
>  preference 2
>  destination-pattern 8187
>  progress_ind setup enable 3
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:2.9.3.1
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  no vad
> !
> dial-peer voice 12 pots
>  destination-pattern [0]T
>  translate-outgoing called 5
>  direct-inward-dial
>  port 3/1:23
>  forward-digits all
> !
> dial-peer voice 13 voip
>  translation-profile outgoing B866
>  preference 2
>  destination-pattern 8500
>  progress_ind setup enable 3
>  translate-outgoing called 10
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:2.9.3.1
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  no vad
> !
> dial-peer voice 2144425700 voip
> !
> dial-peer voice 14 voip
>  preference 2
>  destination-pattern 8080
>  progress_ind setup enable 3
>  translate-outgoing called 10
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:2.9.3.1
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  ip qos dscp cs5 media
>  no vad
> !
> dial-peer voice 10 pots
>  destination-pattern [0]T
>  translate-outgoing called 5
>  direct-inward-dial
>  port 2/0:23
>  forward-digits all
> !
> dial-peer voice 9 pots
>  destination-pattern [0]T
>  translate-outgoing called 5
>  direct-inward-dial
>  port 3/0:23
>  forward-digits all
> !
> dial-peer voice 5 pots
>  destination-pattern [1-9]T
>  progress_ind alert enable 8
>  translate-outgoing called 4
>  direct-inward-dial
>  port 2/0:23
>  forward-digits all
> !
> dial-peer voice 4 pots
>  destination-pattern [1-9]T
>  progress_ind alert enable 8
>  translate-outgoing called 4
>  direct-inward-dial
>  port 3/1:23
>  forward-digits all
> !
> dial-peer voice 2 pots
>  translation-profile incoming B866
>  destination-pattern [1-9]T
>  progress_ind alert enable 8
>  translate-outgoing called 4
>  direct-inward-dial
>  port 3/0:23
>  forward-digits all
> !
> dial-peer voice 7 voip
>  translation-profile incoming B
>  preference 1
>  destination-pattern 8187
>  progress_ind setup enable 3
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:2.9.3.2
>  incoming called-number .
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  no vad
> !
> dial-peer voice 15 voip
>  translation-profile incoming B
>  preference 1
>  destination-pattern 8187
>  progress_ind setup enable 3
>  voice-class codec 1
>  max-redirects 10
>  session target ipv4:10.31.20.2
>  incoming called-number .
>  dtmf-relay h245-alphanumeric
>  fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback cisco
>  no vad
> !
> gateway
>  timer receive-rtp 1200
> !
> !
> gatekeeper
>  shutdown
> !
> !
> line con 0
>  password 7 03095A18031D26551F
>  transport output all
>  stopbits 1
> line aux 0
>  transport output all
>  stopbits 1
> line vty 0 4
>  password 7 04692B055C291C5C1A4A
>  login
>  transport input all
>  transport output all
> !
> ntp clock-period 17179928
> ntp server 64.47.4.85
> !
> end
>
>
>
>
>
>
> jim.brunetti at usa.net
>
>
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
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>


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