The max number of DNs you can assign is more a function of the 3rd party device/software and the license you have. I am primarily testing soft phones. With X-Lite, you can only have a single line with the "free" version but can have multiple lines with the "pro" version.
I am not sure what limits CME imposes on the maximum number of lines you can assign to a SIP device. Based on this doc:
You can define up to 10 "number" tags for each SIP register pool. Which I believe correlates to a a max of 10 DNs for a SIP device. The maximum DNs available on the system is controlled by the "max-dn" command under the "voice register global" configuration stanza.
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...