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John Mayer
Beginner

No DSP Issue in Voice Gateway on FXO ports

Hello Everybody

actually i have a problem with my VG, my scenario is as below,

PSTN--> (12*FXO / 1*E1) --> CUC (Greeting Call Handler)--> CUCM

and Vocie Gateway is 29211 with 1* PVDM3-64 and 1* PVDM3-32

The Problem is, on some FXO ports (its RANDOM), after a while, when i get "show Vocie Call Status" its give me the No DSP on calls

and when this issue is happened, VG does not allow Incoming and Outgoing Calls and actually no calls

does anybody have suggestion about it????

thank you in advance

John

13 REPLIES 13
Manish Gogna
Cisco Employee

Hi John,

Have you configured the voice card on the router like below

voice-card 0

dspfarm

dsp services dspfarm

Also, card type

card type {t1 | e1}

Try configuring it and if it does not work, please provide show tech from the gateway.

Manish

- Do rate helpful posts -

thanks for your replay

actually i have this problem on my FXO ports

but at this time, i clear all my configuration under FXO port (such as CPtone, Supervisory , ...) and my problem was solved,

Good to know that the issue is resolved, thanks for updating the post.

Manish

Dear Manish

unfortunately the error was back today

here is the show dsp output

and show call voice summary

dsp 1:
  State: UP, firmware: 37.3.10
  Max signal/voice channel: 32/32
  Max credits: 480, Voice credits: 480, Video credits: 0
  num_of_sig_chnls_allocated: 32
  Transcoding channels allocated: 0
  Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 450, reserved credits: 0
    Signaling channels allocated: 32
    Voice channels allocated: 2
    Credits used (rounded-up): 30
    Voice channels:
      Ch01: voice port: 0/3/3, codec: None, credits allocated: 15
      Ch02: voice port: 0/0/0:15.28, codec: g711ulaw, credits allocated: 15
  Slot: 0a
  Device idx: 0
  PVDM Slot: 0
  Dsp Type: SP2600


CallID     CID  ccVdb      Port        Slot/DSP:Ch  Called #   Codec    MLPP Dial-peers
0x715      1F4A 0x2315CC14 0/1/2            No DSP  2299       None     24/20
0x718      1F4A 0x23160070 0/2/0            No DSP *2299       None      20/24

and i try to do what you said on Vocie-card 0

so i will update you on it tomorrow

thank you

still have problem , and show no dsp and incomming calls are not work

Can you share the running config and debug voice ccapi inout for a failed call.

Manish

actually because i dont know when it happened its not possible to have debug output, but here is my running config

Note: 2299 is my Call Handler Number n CUC, and i reduce the output for 4 FXO because they are the same

VG-RTR-2921#sh run
Building configuration...

!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname VG-BUT-RTR-2921
!
boot-start-marker
boot system flash0:/c2900-universalk9-mz.SPA.154-3.M4.bin
boot-end-marker
!
!
card type e1 0 0
!
no aaa new-model
network-clock-participate wic 0
!
!
!
!
!
!
!
!
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!         
!
!
!
isdn switch-type primary-net5
!
!
trunk group Outgoing-FXO
 hunt-scheme longest-idle
!
cts logging verbose
!
voice-card 0
 dspfarm
 dsp services dspfarm
!
!
voice call send-alert
voice rtp send-recv
!
voice service pots
 fax rate disable
!
voice service voip
 no ip address trusted authenticate
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 fax protocol t38 version 0 ls-redundancy 2 hs-redundancy 0 fallback pass-through g711ulaw
 no fax-relay sg3-to-g3
 h323
  no h225 timeout keepalive
 sip
!
voice class codec 1
 codec preference 1 g711ulaw
 codec preference 2 g711alaw
 codec preference 3 g729r8
 codec preference 4 g729br8
 codec preference 5 g722-48
 codec preference 6 g722-56
 codec preference 7 g722-64
!
!
!
voice class custom-cptone I
 dualtone busy
  frequency 425 425
  cadence 500 500
 dualtone ringback
  frequency 425 425
  cadence 1000 4000
 dualtone disconnect
  frequency 425 425
  cadence 250 250
!
!
!
!
voice translation-rule 1
 rule 1 /.+/ /2299/
!         
!
voice translation-profile IncomingProfile_1
 translate called 1
!
!
!
hw-module pvdm 0/0
!
hw-module pvdm 0/1
!
!
!
!
redundancy
!
!
!
!
!
controller E1 0/0/0
 framing NO-CRC4
 pri-group timeslots 1-31
!
controller E1 0/0/1
 shutdown
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address 192.168.200.20 255.255.255.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet0/2
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0:15
 no ip address
 encapsulation ppp
 isdn switch-type primary-net5
 isdn incoming-voice modem
 isdn sending-complete
 no cdp enable
!
ip forward-protocol nd
!
ip http server
ip http authentication local
ip http secure-server
!
ip route 0.0.0.0 0.0.0.0 192.168.200.1
!
!
!
!
control-plane
!
!
voice-port 0/0/0:15
 bearer-cap Speech
!
voice-port 0/1/0
 trunk-group Outgoing-FXO
 no vad
 connection plar opx 2299
 caller-id enable
!
voice-port 0/1/1
 trunk-group Outgoing-FXO
 no vad
 connection plar opx 2299
 caller-id enable
!
voice-port 0/1/2
 trunk-group Outgoing-FXO
 no vad
 connection plar opx 2299
 caller-id enable
!
voice-port 0/1/3
 trunk-group Outgoing-FXO
 no vad
 connection plar opx 2299
 caller-id enable
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
!
dial-peer voice 100 voip
 description "_Outgoing to CUCM_"
 destination-pattern [1-5]..
 session target ipv4:192.168.200.10
 dtmf-relay h245-alphanumeric
 codec g711ulaw
 no vad
!
dial-peer voice 10 pots
 description Incoming-PSTN-E1 0/0/0
 translation-profile incoming IncomingProfile_1
 incoming called-number .
 direct-inward-dial
 port 0/0/0:15
!
dial-peer voice 2299 voip
 description "_Outgoing to CUCM_"
 destination-pattern 2299
 session target ipv4:192.168.200.10
 dtmf-relay h245-alphanumeric
 codec g711ulaw
 no vad
!
dial-peer voice 20 pots
 trunkgroup Outgoing-FXO
 description ROutgoing__local 4 digit"
 destination-pattern ....
 forward-digits all
!
dial-peer voice 21 pots
 trunkgroup Outgoing-FXO
 description ROutgoing__local 5 digit"
 destination-pattern .....
 forward-digits all
!
dial-peer voice 22 pots
 trunkgroup Outgoing-FXO
 description ROutgoing__local 6 digit"
 destination-pattern ......
 forward-digits all
!
dial-peer voice 23 pots
 trunkgroup Outgoing-FXO
 description ROutgoing__local 7 digit"
 destination-pattern [2-9]......
 forward-digits all
!
dial-peer voice 24 pots
 trunkgroup Outgoing-FXO
 description ROutgoing__local 8 digit"
 destination-pattern [2-9].......
 forward-digits all
!
!
!
dial-peer voice 50 pots
 description Incomming-PSTN
 incoming called-number .
 port 0/1/0
!
dial-peer voice 51 pots
 description Incomming-PSTN
 incoming called-number .
 port 0/1/1
!
dial-peer voice 52 pots
 description Incomming-PSTN
 incoming called-number .
 port 0/1/2
!
dial-peer voice 53 pots
 description Incomming-PSTN
 incoming called-number .
 port 0/1/3
!
!
!
!
gatekeeper
 shutdown
!
!
!
scheduler allocate 20000 1000
ntp server 192.168.1.9 prefer
!
end

Hi John,

Is the issue seen with this config as well? Are any calls being impacted?

Manish

yes, this it my final config

Hi John,

Can you share the "show voice dsp" and "debug voice ccapi inout" , "show voice port summary" output for a failed call when the issue is seen.

Manish

You have one loop back and interface. I think you may need bind h323 interfaces. Is any way to post debug voice ccapi inou.?

Like Manish said please post debugs:

is this h323 gateway ? if it is you need to bind the interface..

Hi Samuel

this is H323 Gateway

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