How to block specific calling numbers on SIP voice GW?

[qinghao.zhou]

Hi all,

As per the call flow below, is any way to block specific calling numbers on SIP voice GW or CUCM 7?
( I could see H323 is capable, not sure about SIP voice gateway)

PSTN -> digital T1 ->SIP voice gateway -> Cisco Call Manager -> corporate user

Thanks in advance,

Howard

[CHRIS CHARLEBOIS]

What hardware is running the SIP gateway?  If it is IOS, can you run a TCL script on it, like on an H.323 gateway?

[qinghao.zhou]

The SIP voice gateway is running on Cisco 2851,IOS 12.4T

[CHRIS CHARLEBOIS]

I think you can use the TCL script that blocks a list of calling numbers.  It's one of the sample voice TCL scripts over on the Cisco Developer web site.

[paolo bevilacqua]

How many numbers you need to block ? For less than 15, you can use a translation-rule with to refuse calls under the incoming voip DP.

[qinghao.zhou]

thanks all for your reply.   Only one phone number I need to block.

I made change to voice gateway, still not working.  I attached the change I made below.    Anything I missed?

voice translation-rule 1

rule 1 reject /XXXXXXX/

!

!

voice translation-profile call_block

translate calling 1

!

!

dial-peer voice 100 pots

call-block translation-profile incoming call_block

destination-pattern 9T

incoming called-number .

direct-inward-dial

port 0/0/0:23

Howard

[paolo bevilacqua]

Apply the profile as translation-progile, not call-block.

[qinghao.zhou]

I tried, still doesn't work.

dial-peer voice 100 pots

translation-profile incoming call_block
.....

Also, I added the translation profile to voice port, the call still goes through.

voice-port 0/0/0:23
translation-profile incoming call_block
input gain -6
output attenuation 6

Any idea?  Any more information I could gather for troubleshooting?

I run " debug isdn q931" ,   it showed the correct calling number which I want to block,  (  eg.  rule 1 reject /1234567890/ ,    tel#1234567890 is the number I want to block)

Thanks a lot!