Cisco CCNA Voice Certification Exam Tutorial – Default Max Ephone and Ephone-dn and Configurations
What number of telephones and listing numbers will be configured on Cisco Unified Communications Supervisor Categorical by default?
Sure, by default, no ephones or listing numbers can register. Earlier than doing the rest, the next configuration is required:
This permit as much as 4 telephones to register / be configured and eight listing numbers.
For those who do not do that, the router is not going to permit ephones or ephone-dns to be created. Right here is an instance of what would occur:
ephone tag 1 exceeds max-ephones 0
dn 1 exceeds max-dn 0
The utmost variety of ephones and ephone-dns that may be configured is platform dependent. Right here is an instance of my router that may assist 30 telephones with as much as 150 ephone-dns:
Most telephones to assist
Most listing numbers supported
Cisco have an excellent doc exhibiting you what number of ephones/dns are supported on particular platforms. Take a look here
For example, utilizing CME model 4.3:
The 2801 helps 25 telephones and 120 ephone-dns
The 2811 helps 35 telephones and 144 ephone-dns
The 2821 helps 50 telephones and 192 ephone-dns
The 3845 helps 250 telephones and 720 ephone-dns
(There are others, please check with the hyperlink above for a full listing)
Cisco additionally advocate that you simply solely allow the variety of ephones and ephone-dns for the quantity you require, not the utmost the platform can assist. The reason being that when a ephone / ephone-dn is created, it makes use of up reminiscence on the router. Do not simply create them as a result of you may! Create solely what’s required.
To your success!