Cisco CCNA Voice Certification Exam Tutorial - Default Max Ephone And Ephone-dn And Configurations

How many phones and directory numbers may be configured on Cisco Unified Communications Manager Express by default?

Answer: Zero!

Yes, by default, no ephones or directory numbers can register. Just before carrying out something else, the following configuration is expected:

Router>enable

Router#configure terminal Router(config)#telephony-service Router(config-telephony)#max-ephones four Router(config-telephony)#max-dn 8

This permit as much as 4 phones to register / be configured and eight directory numbers.

For those who don't do that, the router won't let ephones or ephone-dns to become produced. Right here is an instance of what would occur:

R1(config)#ephone 1 ephone tag 1 exceeds max-ephones 0 R1(config)#ephone-dn 1 dn 1 exceeds max-dn 0

The maximum variety of ephones and ephone-dns which will be configured is platform dependent. Right here is definitely an instance of my router which will support 30 phones with as much as 150 ephone-dns:

R1(config-telephony)#max-ephones ?

Maximum phones to support

R1(config-telephony)#max-dn ?

Maximum directory numbers supported

Cisco possess a wonderful document showing you how several ephones/dns are supported on particular platforms. Possess a appear right here

As an instance, using CME version four.3: The 2801 supports 25 phones and 120 ephone-dns The 2811 supports 35 phones and 144 ephone-dns The 2821 supports 50 phones and 192 ephone-dns The 3845 supports 250 phones and 720 ephone-dns

(You will find others, please refer for the hyperlink above to get a full list)

Cisco also advise that you just only allow the number of ephones and ephone-dns for the number you require, not the maximum the platform can help. The explanation is the fact that when a ephone / ephone-dn is created, it makes use of up memory on the router. Do not just produce them mainly because you'll be able to! Build only what is essential.

To your achievement!

David Bombal,

CCIE #11023, CCSI, CCDP, CCIP, CCNP, CCSP, CCVP, CCNA, CCDA

click resources click reference clicking here go to my blog click here web site helpful hints visit website full article click reference check my reference click here check that click reference find out important site check this out discover more here important source go here more help important link this site find here useful content more site here get the facts check this important source link resources discover more look at this check my site related site useful link important source go to my site important site helpful resources additional reading additional info more help blog link click for source full report read full report important site related site find out more more bonuses this site useful site more about the author blog link useful source full report