07-31-2006 06:05 AM - edited 03-13-2019 02:24 PM
CCM 4.2 + Gateway 2821
We have a problem with some phones:
Internal calls are always ok but when we place an external call we not hear the ring. In the other side, the phone rings but at the answer, no audio between the phones. It's exactly the same if an external phone calls an ip phone.
If we reset the ccm, the gateway and the phones, it's always the same phones in the park that have the problem.
An idea?
Thanks you
07-31-2006 06:12 AM
I am sure you have checked this but are you sure you don't have an ip routing problem?
07-31-2006 06:20 AM
For all phones it's the same VLAN, the same ip range, the same tftp server (CCM), the same firmware, ...
Wierd...
07-31-2006 06:31 AM
Curiously, the call succeeds well but not correctly:
There is the tonality well, but that does not sound. On the other hand, the telephone called sounds. When one takes down, no audio
07-31-2006 06:32 AM
Are you using MGCP or H.323?
07-31-2006 06:37 AM
MGCP
07-31-2006 06:47 AM
The line provider is Mobistar (BE) in Belgium
The card in the gateway is VWIC2-1MFT-T1/E1
The config for information:
Current configuration : 1762 bytes
!
! Last configuration change at 16:30:31 UTC Wed Jul 26 2006
! NVRAM config last updated at 08:59:55 UTC Thu Jul 27 2006
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname voip
!
boot-start-marker
boot-end-marker
!
card type e1 0 0
!
no aaa new-model
!
resource policy
!
network-clock-participate wic 0
!
!
ip cef
!
!
!
!
isdn switch-type primary-net5
!
voice-card 0
no dspfarm
!
!
!
!
!
controller E1 0/0/0
framing NO-CRC4
pri-group timeslots 1-31 service mgcp
description Connected to Belgacom PRI
!
!
!
!
!
!
interface GigabitEthernet0/0
ip address 10.10.1.4 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
!
!
ip http server
no ip http secure-server
!
!
!
!
!
!
!
control-plane
!
!
!
voice-port 0/0/0:15
cptone BE
!
ccm-manager mgcp
ccm-manager music-on-hold
ccm-manager config server 10.10.1.2
ccm-manager config
!
mgcp
mgcp call-agent 10.10.1.2 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 rtp payload-type g726r16 static
!
mgcp profile default
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
scheduler allocate 20000 1000
!
end
07-31-2006 10:27 PM
A defect phone/ATA is possible?
A bad firmware reception?
We have about 30% of fault
08-01-2006 04:20 AM
Hi
We have maybe the cause:
The IP address:
We have more than 255 phones => 2 range dhcp
10.10.1.xxx
and
10.10.2.xxx
(mask 255.255.0.0)
All phones in 10.10.1.xxx works fine and not the others
08-01-2006 05:32 AM
OK solved: mask problem
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide