[cisco-voip] calls dropping on 5th minute

[Teodor Dobrev]

Hi to all

Here is the problem

I have 2811 connected through WVIC-MFT-E1 to the telco using ISDN PRI
service.

IPT using CCM 4.2.

Every call I made out and in to the PSTN gets dropped on the exactly 5th
minute (300 sec) with cause code 127 interworking error

 

18F1 : 14740 882840880ms.14758 +160 +300900 pid:200 Answer 08070707#

 dur 00:05:00 tx:14802/2486736 rx:14987/2397920 7F  (interworking (127))

Telephony 3/0 (14740) [3/0] tx:278170/278170/0ms g711alaw noise:-67dBm
acom:-29dBm

 

18F1 : 14742 882840950ms.14759 +90 +302820 pid:3334 Originate 600

 dur 00:05:02 tx:14860/2377600 rx:14804/2368640 7F  (interworking (127))

 IP 192.168.5.29:16384 SRTP: off rtt:0ms pl:277790/0ms lost:0/2/0
delay:55/55/65ms g711alaw

 media inactive detected:n media contrl rcvd:n/a timestamp:n/a

 

 

I get slips on the line:

 

R2811-B#sh controllers e1 0/0/0

E1 0/0/0 is up.

  Applique type is Channelized E1 - balanced

  Description: BTC_PRI_LINE

  No alarms detected.

  alarm-trigger is not set

  Version info Firmware: 20051006, FPGA: 20, spm_count = 0

  Framing is CRC4, Line Code is HDB3, Clock Source is Internal.

  CRC Threshold is 320. Reported from firmware  is 320.

  Data in current interval (788 seconds elapsed):

     0 Line Code Violations, 0 Path Code Violations

     8 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     8 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail
Secs

 

 

 

And here is the configuration:

 

controller E1 0/0/0

 linecoding hdb3

 framing crc4

 clock source line

 pri-group timeslots 1-31

 

interface Serial0/0/0:15

 no ip address

 encapsulation hdlc

 isdn switch-type primary-net5

 isdn overlap-receiving

 isdn incoming-voice voice

 isdn send-alerting

 isdn bchan-number-order ascending round-robin

 no cdp enable

end

 

 

The telco said that this is not their problem.

Any suggestion might be useful.

Thanks in advance

--------

Kind Regards,

Teodor D. Dobrev

Telelink AD

Technical Department Expert

phone: +35929704040

fax: +35929704042

cell: +359899980553

e-mail: tdobrev at telelink.bg <mailto:tdobrev at telelink.bg> 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20060721/f6a414a4/attachment-0001.html