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How to block SIP caller ID to PSTN?

Sean McQuade
Level 5
Level 5

Hi all,

We have a small office running CME. The customer doesn't want caller ID being presented for calls out the PSTN. For the SCCP phones, we have simply added the "caller-id block" command under the DN and this works. We have a few iPhone users using SIP clients, but can't seem to block the outgoing CLID on this. I did some searching and have tried the clid strip pi-restrict all command, but the calls still present to the PSTN as the main switchboard number. Config below:

voice service voip

clid strip pi-restrict all

allow-connections sip to h323

allow-connections sip to sip

no supplementary-service sip moved-temporarily

no supplementary-service sip refer

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw

h323

  call service stop

sip

  registrar server expires max 3600 min 120

  no update-callerid

!

!

voice register global

mode cme

source-address 192.168.10.1 port 5060

max-dn 10

max-pool 10

load 7971 term71.default

authenticate register

authenticate realm domain.com

timezone 13

hold-alert

mwi stutter

mwi reg-e164

voicemail 200

!

voice register dn  1

number 205

call-forward b2bua busy 200 

call-forward b2bua noan 200 timeout 20

allow watch

name SIP-Office

no-reg  

label 205

mwi     

!

voice register pool  1

id mac 0000.0000.0000

number 1 dn 1

presence call-list

dtmf-relay rtp-nte

username 205 password 1234

codec g711ulaw

no vad

privacy on

!

Is there any way to achieve this?

Thanks

Sean

1 Accepted Solution

Accepted Solutions

paolo bevilacqua
Hall of Fame
Hall of Fame

Are you looking for blocking calling number permanently and for every call ?

Then

dial-peer voice xxx pots

caller-id restrict

for all DPs.

View solution in original post

3 Replies 3

paolo bevilacqua
Hall of Fame
Hall of Fame

Are you looking for blocking calling number permanently and for every call ?

Then

dial-peer voice xxx pots

caller-id restrict

for all DPs.

Thank you Paolo, this worked perfectly.

You're welcome, thank you for the nice rating and good luck!