https://sangomakb.atlassian.net/wiki/spaces/SS/pages/397803579/Support+Services+-+Understanding+a+ISDN+PRI+capture
Support Services - Understanding a ISDN PRI capture - Support Services - Sangoma Documentation
support servicesisdn priunderstandingcapturesangoma
https://www.cisco.com/c/en/us/obsolete/interfaces-modules/cisco-2600-3600-series-1-port-fast-ethernet-2-port-channelized-e1-isdn-pri-balanced-network-module.html
Cisco 1-Port Fast Ethernet 2-Port Channelized E1/ISDN-PRI Balanced NM - Retirement Notification -...
The Cisco 1-Port Fast Ethernet 2-Port Channelized E1/ISDN-PRI Balanced NM has been retired and is no longer supported.
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