03-18-2013 05:44 PM - edited 03-21-2019 07:07 AM
We have a UC540 and I have been trying to get CallerID blocking on a call-by-call basis.
From what I have reviewed online, the "caller-id block code *9" under "telephony-service" should provide my callers the ability to dial "*9" and then the outside line code "0" and then the number. This should block the CallerID for that call.
I have applied the configuration but the call fails when testing it.
I have tried apply SIP debug, but when debugging is activated by phone starts doing strange things when I try and make the test call, like when i pick up the handset it freezes. I suspect this is related to a memory issue, which is another issue. I digress.
We are using a SIP provider for PSTN access. According to them they support "anonymous callerID". Whether or not that means a caller ID of "null" is another question. Bottom line is I cant capture a SIP debug to diagnose where it is failing.
So then I started thinking, is there is a called-translation rule I could create to apply a "null" value to match case of a called "*9" etc.
Question 1: Has anyone had a similar issue regarding the block caller-id on a UC500 with SIP provider and founf a workaround?
Question 2: Can the caller-id issue be worked around by applying a translation rule to match the *9 but apply a null value? ..not sure how one would apply the null value in the translation rule?
Question 3: Is it possible to install more memory into a UC540?....cant really find a suitable SKU in this regard so I am not sure if a memory upgrade is supported?
03-19-2013 05:21 AM
Yes, you can setup an additional dial-peer to place anonymous calls. it will have a special destination-pattern and theen the translations needed to to make the call anonymous.
03-19-2013 01:10 PM
Agreed, but what would the "null" or "anonymous" translation pattern be? What woudl the CLI config look like for the null translation. I have done many translations rules and profiles, but have never come across this where I need to translation rule to change to "null" or anonymous?
03-19-2013 11:26 PM
You can remove the calling number altogether. Ask you ITSP if that is enough.
03-20-2013 02:36 AM
I only want to remove the calling number on a call-by-call basis. Removing it for all calls is not suitable. I want users to be able to dial *9 and then dial the number, which then blocks the calling number. What transaltion pattern would let me do this?
03-20-2013 03:17 AM
Yes, as indicated above, you need to create an additional dial-peer and apply "clid strip" or other options in there.
03-20-2013 03:20 AM
yes, but what is the translation pattern to tranlsate digits to a null value?
rule 1 /*9T/ // ?
03-20-2013 03:23 AM
clid strip shold be enough. To learn about voince translation rules, type that on cisco.com search box.
03-20-2013 04:06 AM
I already have my dial-peers configured for my call legs. If I apply the "clid strip" command to my PSTN dial-peer then ALL my calls will not have a CallerID. This is not the requirement. I need only apply to apply the clid when the caller wants to hide the callerID.
Based on my research this should work.
Router# configure terminal
Router(config-telephony)# caller-id block code *9
Are you suggesting that I create another dial-peer for the same outgoing PSTN call leg? For example....
dial-peer voice 1234 voip
session protocol sipv2
session target sip-server
voice-class codec 1
voice-class sip dtmf-relay force rtp-nte
ip qos dscp cs5 media
ip qos dscp cs4 signaling
03-20-2013 04:19 AM
Yes as mentioned twice above already.
03-19-2013 01:13 PM
Regarding Question 3: RE the UC500 memory upgrade. Apparently this is not supported and not avail
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