Apologies for the dumb question but...I understand that 911 system in North America used CAMA signaling protocol. From what I can tell this protocol is used exclusively with analog connection types. I'm wondering how 911 works with digital connection types such as ISDN PRI/BRI etc? If a company does not have any analog CAMA connections out to the PSTN how does the 911 get treated?
There is no technical reason why 911 would not work on PRI trunks.
However, some service provider *may* overwrite the calling party number offered at call setup if the called number is 911: this varies from lec to lec. When ANI is overwritten, the LEC will typically use the Bill To Number, or main directory number on the trunk group.
This is mostly a policy decision by the LECs, not something imposed by technology.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...