ringing but no sound with NM-HDV E1

ringing but no sound with NM-HDV E1

Post by idanfai » Fri, 13 Oct 2006 21:46:47

I am having troubles conncting 2 sites' PBXs. let's call them site A
and Site B.
the symptom is that when we make a call there is ringing but on the
line you hear nothing (or quiet noise). you don't even hear dial\busy
the session is termintaed by itself in 2-3 seconds.

The problematic site is site A. (I now that because site B is currently
working fine with other siteC . therefor, i know that the connection to
the pbx on site B is ok. on site B we have 3845 router with full E1 and
NM-HDV2 ) .

On problematic site A there is 2611XM router installed with the IOS as

System image file is "flash:c2600-ipvoicek9-mz.124-10.bin"
Cisco 2611XM (MPC860P) processor (revision 4.1) with 125770K/5302K
bytes of memory.
Processor board ID FCZ100572MC
M860 processor: part number 5, mask 2
2 FastEthernet interfaces
2 Channelized E1/PRI ports
32K bytes of NVRAM.
32768K bytes of processor board System flash (Read/Write)

the connection to the pbx is done through cross E1 cable with NM-HDV
card with PVDM-12.

here is the configuration file :

version 12.4
hostname SiteA
logging buffered 4096 debugging
no aaa new-model
network-clock-participate slot 1
no network-clock-participate wic 0
network-clock-select 1 E1 1/1
voice-card 1
ip cef
isdn switch-type primary-net5
voice class h323 1
h225 timeout setup 2
call start fast
controller E1 1/0
controller E1 1/1
pri-group timeslots 1-12,16
interface FastEthernet0/0
description Connection To Local LAN
ip address
duplex auto
speed auto
interface FastEthernet0/1
ip address X
speed 100
interface Serial1/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable
router rip
version 2
network X
network Y
no auto-summary
ip route Zzzzz
ip http server
no ip http secure-server
voice-port 1/1:15
dial-peer voice 3000 voip
destination-pattern 3...
voice-class h323 1
session target ipv4: XXXX
dial-peer voice ZZZZ pots
destination-pattern MM..
port 1/1:15
forward-digits all
line con 0
line aux 0
line vty 0 4
password ZZZZZZ

here is the log from the router after initiation a call:
Mar 9 02:08:21.922: %ISDN-6-CONNECT: Interface Serial1/1:1 is now
connected to
204 N/A
*Mar 9 02:08:25.840: %ISDN-6-DISCONNECT: Interface Serial1/1:1
disconnected fr
om 204 , call lasted 3 seconds
*Mar 9 02:08:30.536: %DSMP-3-DSP_TIMEOUT: DSP timeout on DSP 1/15:2:
event 0x6,
DSMP timed out, while waiting for statistics from the DSP. DSMP State
*Mar 9 02:08:30.536: chnl info(1, 15, 2)
*Mar 9 02:08:50.352: %DSPRM-5-KEEPALIVE: DSP 15 in slot 1, NOT
o restart(10 times)
*Mar 9 02:08:59.399: %DSPRM-5-UPDOWN: DSP 15 in slot 1, changed state
to up

sometimes theses messages are shown also :
*Mar 1 00:29:10.994: %DSMP-3-DSPALARM: Alarm on DSP 1/12:2: status=0x1
0x0 text=-
*Mar 1 00:29:10.998: chnl info(1, 12, 2)
*Mar 1 00:29:11.002: vnm_dsprm_alarm_indication_msg_proc: fatal err 1

another test that i performed:
somethong is strange to me about the fact that total dsp channels
allocated. is it how is supp