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Volna (ISP) (OP)
21 Feb 06 5:02
I have Cisco C2611 with VWIC-2MFT-G703 and AIM-VOICE-30.
IOS c2600-advipservicesk9-mz.124-5a.

I try to connect C2611 to EWSD via 2 E1-PRI lines.
So I connect E1 0/0 to port A of EWSD, and E1 0/1 to port B of EWSD.


Cofiguration:
!
controller E1 0/0
pri-group timeslots 1-16
!
controller E1 0/1
pri-group timeslots 16-31
!
.......
!
interface Serial0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn not-end-to-end 64
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
no cdp enable
!
interface Serial0/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn not-end-to-end 64
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
no cdp enable
!
.......
!
voice-port 0/0:15
!
voice-port 0/1:15
!

Of cource port A have only 1-15 voice timeslots, port B only 16-30 voice timeslots.


At first I see Error in logs like this:
"ISDN Se0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2"
or
"ISDN Se0/1:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2"
If pri-group was created at E1 0/0 and then at E1 0/1 then error appears at Se0/0:15
If pri-group was created at E1 0/1 and then at E1 0/0 then error appears at Se0/1:15
So error appears at first created Serial. Second Serial have no errors.


At second pri at EWSD port that is connected to port E1 0/0 is allways in down at station side,
but at cisco side it is up. Port connected to E1 0/1 is up from both sides and works correctly.
So if A connected to 0/0 and B connected to 0/1: A is down, B is up, 0/0:15 and 0/1:15 are up,
if A connected to 0/1 and B connected to 0/0: B is down, A is up, 0/0:15 and 0/1:15 are up.


At third if we have errors from "At First" at 0/0:15 - calls to 0/1 comes successfully.
But if we have errors at 0/1:15 than in logs I can see:
ISDN Se0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x001D
Sending Complete
Bearer Capability i = 0x9090A3
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98392
Exclusive, Channel 18
Progress Ind i = 0x8083 - Origination address is non-ISDN
Called Party Number i = 0x81, '8'
Plan:ISDN, Type:Unknown
%ISDN-6-CHAN_UNAVAILABLE: Interface Se0/0:15 Requested Channel 18 is not available
ISDN Se0/0:15 **ERROR**: CCPMSG_InCall: Channel_ID IE invalid 44 (0x2C)
ISDN Se0/0:15 **ERROR**: CCPMSG_InCall: rejecting call
ISDN Se0/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x801D
Cause i = 0x80AC181F - Requested circuit/channel not available
So Cisco tries to accept call (comming via 0/1) with Serial 0/0:15, but to timeslot 18.
And call cannot be accepted because of E1 0/0 don't use timeslot 18.


What should we do???

Best regards,
Volna

ISDNman (Vendor)
21 Feb 06 10:21
Why are you only using 16 channels per PRI?

That owuld seem to be at least part of your problems. If you are paying for two E1/PRI's why not use all 60 channels?

Good Luck.

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