30 ip phone operating on cisco 2801 CME

[nicanor00]

Hi

I have cisco 2801 spservicek9 with cme 8

I  configured CME on this router, and I have already add 30 ephone on this cme

I have also connected 30 IP phone on my network and it work fine

Refer to cisco documentation, cisco 2801 router can support only 25 ip phone, in my case I added 30 ip phone successfully : why the router accept more than 25 ephone ?

Is there a particular risk to have  30 IP phone operating on cisco 2801 CME ?

Please advise

[Rob Huffman]

Hi Nicanor,

The stated max users on a 2801 is 25 but there is some cushion here from Cisco that will let you

register up to 30 phones. This is common on all the ISR series and does not pose any

risk to run in this manner. It's like the license overdraft that Cisco allows on CUCM.

Cheers!

Rob

"Always movin' ahead and never lookin' back" - Springsteen

[nicanor00]

Thanks

[Fida jlassi]

Hi all,

Did the Cisco 2801 support the 6921 IP Phones??

I have an IOS 12.4(11)XJ/CME4.1(0), when connecting the Cisco Ip phone 6921 to the network I get an error message saying that" phone not registred", so should Upgrade the CallManager to another release?? I f yes Which one should I use to add the Cisco 6921 ??

[paolo bevilacqua]

Update to latest.

[Fida jlassi]

The Cisco 2801 didn't support the latest release.

[nicanor00]

Hi

I used this version 6 month ago : c2801-spservicesk9-mz.151-3.T4.bin

And it support 6921 ip phone

[Fida jlassi]

Thanks nicanor00, did you have the detailed procedure to do the upgrade ??

[Fida jlassi]

I found the upgrade procedure at this link  http://www.cisco.com/en/US/products/ps5855/products_tech_note09186a00801fc986.shtml

[paolo bevilacqua]

Fida jlassi wrote:
The Cisco 2801 didn't support the latest release.

Latest for 28xx, obviously.

[Fida jlassi]

The problem is when I will upgrade to 15.1(3)T release, the Old Cisco IP phone 7911G installed will be not supported.

[nicanor00]

Hi Fida

I used this version : c2801-spservicesk9-mz.151-3.T4.bin

And it support 7911. 7912 and 6921

Regards

[Fida jlassi]

Yes it supports 7911 but not 7911G according to their documentation, correct me if I am wrong.

[barry]

7911 and 7911G are the same. No difference.

Barry Hesk

Intrinsic Network Solutions

[Fida jlassi]

The firmware is not the same, the 7911G uses SCCP11.8-2-2SR2S.

Shouls I add it manually to the 15.1.3(T) IOS ?