[VoiceOps] Ghost calls - Sipvicious?

[Jay Hennigan]

On 11/12/13 4:06 PM, Keith Croxford wrote:
> Try this -
> *
> Polycom -*
> 
> Add this to your config file. This will cause the phone to respond with
> a '400 bad request' unless the INVITE comes from the registrar.
> 
> voIpProt.SIP.requestValidation.1.request="INVITE" voIpProt.SIP.requestValidation.1.method="source"

We will test this in the lab.  Also suggested by Mauricio Lizano with
the caveat that it could break things.
> 
> *Adtran  (Only applies to the local SIP stack (voice users, trunks etc) )  *
> 
> Add an ACL, which only lists your proxy/SBC IPs
> 
> ip access-list standard my-proxy
>  remark MY IP SPACE
>  permit  x.x.x.x  y.y.y.y log
> 
> !Apply the ACL as a sip access-class
> ip sip access-class my-proxy in

This has already been done.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
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