ALERT Callcentric email Advisory of Network changes 2022

[ostridge]

Not really a 'bug' but needing a heads up: Email Received today at 6pm. I'm hesitating to fix this as I remember spending hours trying to get their multiple sip trunks to work.

From Callcentric IMPORTANT ADVISORY Network and Firewall Updates

We’ve upgraded our infrastructure to enhance reliability, redundancy, and scalability. To ensure uninterrupted service, a limited group of customers will need to make updates to their equipment and/or firewall.

If you do not directly manage your network and/or VoIP Services, we strongly recommend forwarding this message to the appropriate contacts.
WHO IS AFFECTED:
The large majority of customers (approx. 96%) do not need to do anything. This message and the required changes apply only to:

Customers with a firewall that only allows access to specific Callcentric IP addresses
Asterisk Configurations that explicitly define our Hostnames within the sip_custom_post.conf or sip.conf file
TIMEFRAME: While a hard deadline has yet to be established, we will be releasing one soon

MANDATORY UPDATES

If you fall into either of the above categories, please do the following:

Allow these IP Blocks in your Firewall
199.87.144.0/21
204.11.192.0/22 Click here for details

Add new hostnames
Applies to Asterisk SIP Trunks configured using Chan_SIP Driver Click here for details

RECOMMENDED UPDATES

This change can be applied to all SIP Trunks/Clients:

Switch to a new domain
Within your device’s configuration replace all instances of "callcentric.com" with:
sip.callcentric.net
Click here for details

Our team is on standby to help with any questions. If you need assistance, please check our FAQ entries or open a support ticket.

Current state of my /etc/asterisk/sip_custom_post.conf -Ubuntu file:-

[callcentric1](callcentric);
host=alpha1.callcentric.com

[callcentric2](callcentric);
host=alpha2.callcentric.com

[callcentric3](callcentric);
host=alpha3.callcentric.com

[callcentric4](callcentric);
host=alpha4.callcentric.com


callcentric5](callcentric);
host=alpha5.callcentric.com

[callcentric6](callcentric);
host=alpha6.callcentric.com

[callcentric7](callcentric);
host=alpha7.callcentric.com

[callcentric8](callcentric);
host=alpha8.callcentric.com

[callcentric9](callcentric);
host=alpha9.callcentric.com

[callcentric10](callcentric);
host=alpha10.callcentric.com

[callcentric11](callcentric);
host=alpha11.callcentric.com

[callcentric12](callcentric);
host=alpha12.callcentric.com

[callcentric13](callcentric);
host=alpha13.callcentric.com

[callcentric14](callcentric);
host=alpha14.callcentric.com

[callcentric15](callcentric);
host=alpha15.callcentric.com

[callcentric16](callcentric);
host=alpha16.callcentric.com

host=alpha17.callcentric.com

[callcentric18](callcentric);
host=alpha18.callcentric.com

[callcentric19](callcentric);
host=alpha19.callcentric.com

[callcentric20](callcentric);
host=alpha20.callcentric.com

[signalwire1](signalwire);
host=sip.signalwire.com

[signalwire2](signalwire);
host=104.248.150.114

[signalwire3](signalwire);
host=178.128.235.81

[signalwire4](signalwire);
host=188.166.126.7

[signalwire5](signalwire);
host=159.65.244.171

[signalwire6](signalwire);
host=104.248.176.184

[signalwire7](signalwire);
host=167.99.198.84

 

[roundaway]

I have an old Obihai 110 and the ZoiPer app set up with Callcentric. Changed all instances of callcentric.com to sip.callcentric.net without issue.

 

[ostridge]

I have an old Obihai 110 and the ZoiPer app set up with Callcentric. Changed all instances of callcentric.com to sip.callcentric.net without issue.

That's good news, but there are both sip, and pjsip to debug, as well as what to do in
'/etc/asterisk/sip_custom_post.conf' file which I believe are included in the download images.

 

[wardmundy]

Works fine with PJsip trunk and sip.callcentric.net.

Don't forget to add rules to iptables-custom in /usr/local/sbin and iptables-restart

/usr/sbin/iptables -I INPUT -s 199.87.144.0/21  -j ACCEPT
/usr/sbin/iptables -I INPUT -s 204.11.192.0/22  -j ACCEPT

 

[ostridge]

I added these with

~/add-ip ip-callcentric1 199.87.144.0/21
~/add-ip ip-callcentric2 204.11.192.0/22

Selecting 0 for all services has the same effect as in @wardmundy Post#4
or maybe 1,2,3,4 for udp, tcp, iax, web - as appropriate for your use.

As well do

# to activate the add-ip additions
iptables-restart