how to block fraudulent calls?

[vdub.flat4]

Anyone have any idea on how to block fraudulent calls in the CUBE and CallManager?

[Kapil Pathak]

Hi,

There are two methods of doing it-:

• Applying Access List
• IOS configuration for trusted IP under voice service voip.

1. You can configure the following access-list based on the protocol and corresponding port.

       acl 101 permit udp any host<x.x.x.x> eq 5060

       acl permit tcp any host<x.x.x.x> eq 5060

       acl 101 deny tcp any any eq 5060

       acl 101 deny udp any any eq 5060

       acl 101 permit ip any any

int fa0/0

ip access-group 101 inbound

2. You can upgrade least to the following IOS 15.1(2) T , please find the below link-:

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a0080b3e123.shtml

HTH

Kapil Pathak

[inderpreetsingh23]

Hi,

Try the following links:

https://supportforums.cisco.com/discussion/12440851/blocking-calls-specified-ani-number

https://supportforums.cisco.com/document/71966/blocking-calls-based-calling-party-id

Thanks