Cisco to Ericsson QSIG connection

[silver1omo]

Hi,

We have a interconnect between Cisco 3845 and a MD110, the cisco side is emulating the network and the md110 is the user side.
Suddenly the ISDN does not come fully up.

The cisco side shows outgoing SABME but no answer from the pbx.
In the pbx side the guy that manages it says that he sees SABME errors as well.

SAMBE Error in E1
303 DATA LINK ALARM
DATE TIME ALP NOIF UNIT EQU BRDID INF1 INF2
02FEB12 19:23:41 2 13 SLP60 004-1-20-00 57 258 7
RDATE RTIME
CLASS: 0
303 DATA LINK ALARM
DATE TIME ALP NOIF UNIT EQU BRDID INF1 INF2
13FEB12 21:41:58 3 1 SLP60 003-1-20-00 57 258 0
RDATE RTIME
13FEB12 21:42:05

The cisco config is:

interface Serial0/1/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable

What I have of the pbx:

<rocap:rou=17 & 16;
ROUTE CATEGORY DATA
ROU SEL TRM SERV NODG DIST DISL TRAF SIG BCAP
17 712000000000001 7 3110000010 0 30 128 00141410 211110000030 111111
16 712000000000001 7 3110000010 0 30 128 00141410 211110000030 111111

END

r1= Route =16
r11=route=17
r11 not connected
ROU TYPE VARC VARI VARO FILTER
17 SL60 H'00000310 H'00000000 H'04010000 NO
16 SL60 H'00000310 H'00000000 H'04010000 NO

Could you help me determine if the pbx config is correct for QSIG user side?

 

[batkotivalio]

I think for QSIG your VARO parameter should be: H'04000000!

 

[silver1omo]

Thanks for the answer. What is the difference between H'04010000 and H'04000000?

 

[batkotivalio]

D4=0 - Tie line (QSIG)
D4=1 - Public external line

 

[himdp]

If the cisco interface is set for network(master) side, then d3 of VARO should be 4 not 0 as you need to be the terminal (Slave) side

 

[lindelott]

look at here

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/pbx/interop/notes/608604nt.pdf

 

[silver1omo]

Thanks all for the help, I'll contact the guy who manages the PBX to show him this info.