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Community Member

Connecting Callmanager (CMM) to an Aspect Telephony switch - crossed cable?

Hi all,

I tried tonight to get a QSIG link from a spare port on my CMM (CUCM6.1 controlled) to connect to our Aspect switch.

Despite trying various settings at both ends, i never saw the CMM go beyond "Layer 1 DEACTIVATYED" when i issued 'sh isdn status' command.

This would suggest that my CMM port never got a proper layer 1 (basic) connection from the Aspect, thus layer 1 never came up.

Ive used a straight-thru cable (cat6) to connect the CMM to the Aspect card.

Im wondering if this should have been crossed, maybe at the Aspect end??

How are most E1 connections done cable-wise? Should it be crossed in some way?

Any help appreciated. A little stuck at the moment :)

Oh - we use MGCP. I set my end in CUCM to be 'user' because the Aspect was set as 'master'. Tried turing CRC4 on and off, and a few other settings - never saw layer 1 come up tho, so i think ive made a basic error somewhere :o)

Thanks

4 REPLIES
Hall of Fame Super Gold

Re: Connecting Callmanager (CMM) to an Aspect Telephony switch -

Yes the connection has to be crossed, and do not use ethernet patches as the pairing is different. Please see:

http://www.cisco.com/en/US/docs/wireless/cards/t1e1vwic/1941cvwic/c1941wic.html

Community Member

Re: Connecting Callmanager (CMM) to an Aspect Telephony switch -

Hi,

Many thanks! Sadly i cant get to the link - Cisco page displays saying it is under maintenance :o(

What ar the exact PIN outs? Are these correct?

E1 Crossover

4 5 3 1 2 6 7 8

1 2 3 4 5 6 7 8

Cheers

Community Member

Re: Connecting Callmanager (CMM) to an Aspect Telephony switch -

Just to confirm. E1 crossed at the CMM end, straight at the Aspect end worked fine.

We needed to use QSIG with no CRC4 framing. Also had to reset the card in the Aspect (DTICII card) to get the "Multiple_Frame_Established" connectivity.

Community Member

Re: Connecting Callmanager (CMM) to an Aspect Telephony switch -

Hi Andy,

We are trying to connect a cisco gateway to an Aspect, but we cannot make calls between them

We are using this config in cisco side:


isdn switch-type primary-net5

!
controller E1 0/1/0
pri-group timeslots 1-31
description Corsidian01_30trks_ISDN
!
interface Serial0/1/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable

!
voice-port 0/1/0:15
no echo-cancel enable
bearer-cap Speech

But we are getting this debug error message:

ASSERTION FAILED : ../VOIP/CCTSP/TSP_CDAPI.C:  TSP_CDB_ASSERT_CHECK:  9172

Do u have the same configuration?  Any Ideas....

Thanks

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