[cisco-voip] One Way audio problem

O'Donovan, Kevin Kevin.Odonovan at state.ma.us
Thu Dec 18 12:21:20 EST 2008


Thanks Ahmed,

I did the bind but then the phone rang busy. Good doc and I'm going
through everything else

 

Some new info, in RTMT I noticed the gateway device has nothing
registered. I can see the phones but not the gateway. 

Also the IP phone to IP phone calls are working fine and I'm getting
audio both directions, seems to be only PSTN calls.

 

Thanks

Kevin

 

________________________________

From: Ahmed Elnagar [mailto:ahmed_elnagar at hotmail.com] 
Sent: Thursday, December 18, 2008 11:32 AM
To: Odonovan, Kevin (ITD)
Cc: VOIP Group
Subject: RE: [cisco-voip] One Way audio problem

 

Try to bind MGCP media and control traffic to an interface "usually the
loopback...provided that it is reachable to CM" using the mgcp bind
command in global config mode
 
Also have a look on the below document it is very usefuly:
 
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a
008009484b.shtml



 






________________________________

Date: Thu, 18 Dec 2008 11:19:57 -0500
From: Kevin.Odonovan at state.ma.us
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] One Way audio problem

Hello folks,

I have incoming voice but no outgoing voice.

It's CUCM 6.1(2) to a 2811 MGCP FXO port.

There's no firewall or NAT for this application. 

Routing seems to be OK but I defer to you.

 

Let me know if there's anything else I can provide.

 

Any ideas would be appreciated

 

Thanks

Kevin

------------------------------------------------------------------------
-------

Here are some outputs:

 

show run 

Current configuration : 6255 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname ITDCHLARL-VOIPGW-2811

!

boot-start-marker

boot-end-marker

!

card type t1 0 0

logging buffered 128000 debugging

!

resource policy

!

clock timezone EST -5

clock summer-time EDT recurring

no network-clock-participate wic 0 

ip subnet-zero

!

ip cef

!       

no ip domain lookup

ip host ITD-CHL-ARL-PUB-7845 XXX.YYY.135.175

!

voice-card 0

 no dspfarm

!

voice class codec 101

 codec preference 1 g711ulaw

 codec preference 2 g729r8

!

crypto pki trustpoint TP-self-signed-

  quit

username XXXXX privilege 15 secret 5 XXXXXXXXXXXXXXXXXXXXXXX

username XXXXXXXXXXXX password 7 XXXXXXXXXXXXXXXX

!

!

controller T1 0/0/0

 framing esf

 linecode b8zs

!

controller T1 0/0/1

 framing esf

 linecode b8zs

! 

interface Loopback0

 ip address AAA.BBB.3.72 255.255.255.192

!

interface FastEthernet0/0

 ip address XXX.YYY.135.174 255.255.255.192

 duplex auto

 speed auto

!

interface FastEthernet0/0.24

 encapsulation dot1Q 24

 no snmp trap link-status

!

interface FastEthernet0/0.32

 encapsulation dot1Q 32

 ip address XXX.YYY.180.10 255.255.255.192

 no snmp trap link-status

!

interface FastEthernet0/1

 no ip address

 shutdown

 duplex auto

 speed auto

!

router ospf ----

 log-adjacency-changes

 network AAA.BBB.3.0 0.0.0.63 area 0

 network XXX.YYY.135.128 0.0.0.63 area 0

 network XXX.YYY.180.0 0.0.0.127 area 0

!

ip classless

!

!

no ip http server

ip http authentication aaa login-authentication admin

ip http secure-server

ip http timeout-policy idle 600 life 86400 requests 10000

!

! Tacacs and aaa config in here

!

control-plane

!

voice-port 0/1/0

 timing hookflash-out 50

!

voice-port 0/1/1

!

voice-port 0/1/2

!

voice-port 0/1/3

!

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server XXX.YYY.135.175  

ccm-manager config

!

mgcp      

mgcp call-agent XXX.YY.135.175 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp package-capability rtp-package

no mgcp package-capability res-package

mgcp package-capability sst-package

no mgcp package-capability fxr-package

mgcp package-capability pre-package

no mgcp timer receive-rtcp

mgcp sdp simple

!

mgcp profile default

!

dial-peer voice 1 pots

 service mgcpapp

 port 0/1/0

!

dial-peer voice 2 pots

 service mgcpapp

 port 0/1/1

!

dial-peer voice 3 pots

 service mgcpapp

 port 0/1/2

!

dial-peer voice 4 pots

 service mgcpapp

 port 0/1/3

!

dial-peer voice 100 voip

 destination-pattern 4.....

 voice-class codec 101

 session target ipv4:XXX.YY.135.175

 dtmf-relay h245-alphanumeric

 fax-relay ecm disable

 fax rate disable

 no vad

!

!

!

banner login ^CC

          

banner login ^C

!

line con 0

 password 7 XXXXXXXXXXXXXXXX

line aux 0

line vty 0 4

 password 7 XXXXXXXXXXXXXXX

!

scheduler allocate 20000 1000

!

end 

------------------------------------------------------------------------
------------------------------------------

 

show voice port summary                                      IN
OUT

PORT      CH   SIG-TYPE   ADMIN OPER STATUS   STATUS   EC

========= == ============ ===== ==== ======== ======== ==

0/1/0     --  fxo-ls      up    dorm idle     on-hook  y 

0/1/1     --  fxo-ls      up    dorm idle     on-hook  y 

0/1/2     --  fxo-ls      up    dorm idle     on-hook  y 

0/1/3     --  fxo-ls      up    dorm idle     on-hook  y

 

ITDCHLARL-VOIPGW-2811#show ccm-manager 

MGCP Domain Name: ITDCHLARL-VOIPGW-2811

Priority        Status                   Host

============================================================

Primary         Registered               XXX.YYY.135.175

First Backup    None                     

Second Backup   None                     

 

Current active Call Manager:    XXX.YYY.135.175

Backhaul/Redundant link port:   2428

Failover Interval:              30 seconds

Keepalive Interval:             15 seconds

Last keepalive sent:            11:11:21 EST Dec 18 2008 (elapsed time:
00:00:02)

Last MGCP traffic time:         11:11:21 EST Dec 18 2008 (elapsed time:
00:00:02)

Last failover time:             None

Last switchback time:           None

Switchback mode:                Graceful

MGCP Fallback mode:             Not Selected

Last MGCP Fallback start time:  None

Last MGCP Fallback end time:    None

MGCP Download Tones:            Disabled 

 

Configuration Auto-Download Information

=======================================

Current version-id: 1229574467-b1b558d1-cc55-4657-8132-29e2b1369733

Last config-downloaded:00:00:00

Current state: Waiting for commands

Configuration Download statistics:

        Download Attempted             : 10

          Download Successful          : 10

          Download Failed              : 0

        Configuration Attempted        : 8

          Configuration Successful     : 8

          Configuration Failed(Parsing): 0

          Configuration Failed(config) : 0

Last config download command: Reset

Configuration Error History:

FAX mode: cisco

 

Thanks

Kevin

 

 

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