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How to use CME over the internet

Nico Yang
Level 1
Level 1

Hi

   I config  CME on a C2851 router  ,and all cisco Ip phone\SIP phone are work fine in the  local  lan. The outside user also can use the phone over VPN.  And now they donot want to dial vpn before use ipphone. Is anybody know how to config it? 

int g0/0                            //connect to internet

ip add x.x.x.x 255.255.255.248

...

voice register global

mode cme

  source-address x.x.x.x port 5060

.....

telephony-service

  ip source-address x.x.x.x port 2000

....

outside user's  CIPC TFTP-server address:x.x.x.x

the Third-party 's sip phone/ cisco jabber   server address: x.x.x.x

Is that right ?

Thanks .

1 Reply 1

paolo bevilacqua
Hall of Fame
Hall of Fame

You will need to always use  VPN. There is no practical or easy alternative.