MWI Not Working

[rowseyba1]

Hello all.

I have an issue with a UC520 running vers. 7.1.3 with 504g phones running firmware 7-4-3.  MWI is not working.  I have read the other issues related to this and these don't seem to fit our issue.  We have checked the Ephone-dn's and they are correct, we have checked the gateway and it is correct.  Frankly, we're at a loss.   Attached is the SIP debug.  Any help you can provide is appreciated.

[Steven Smith]

Can you post your config?  I see a SIP 500 error.

Remember to remove passwords.

[rowseyba1]

As do I.  I've checked all ACL's and taken those off that I thought were blocking the mwi from going through.  Here is the config.

[Steven Smith]

I think this is the problem, you have

voice source-group CCA_SIP_SOURCE_GROUP_EXTERNAL

access-list 3

But, you don't have a source group for internal IP's.

Something like...

voice source-group CCA_SIP_SOURCE_GROUP_INTERNAL

access-list 2

translation-profile incoming SIP_Incoming

ACL 2 already exists.  Just looks like the CCA voice source group internal was deleted.

[rowseyba1]

That list was actually in there, but we had the same issue, same debug.

EDIT:  To clarify, we had the SIP internal source list in(but took it out), we got the same result without it as with it.

[rowseyba1]

Here is the debug with the Internal SIP source group added back in.

[Steven Smith]

To see if it is a source group problem, could you temporarily disable both source groups and try again.

[rowseyba1]

That fixed the issue.  I have left both of the SIP groups off and secured the SIP traffic via the incoming ACL on the WAN interface.  Thanks for your help Steven!

[Steven Smith]

I checked again and do not see this in your configuration.

voice source-group CCA_SIP_SOURCE_GROUP_INTERNAL

access-list 2

translation-profile incoming SIP_Incoming

Is this in there?