I am trying to convince our management to deploy VoIP and reduce heir spending for Legacy PBX systems. I was able to get their approval to install Cisco ip telephony products in a limited area & limited budget, probably to test the solution.
I need help with design and product selection in order to make this a success.
The area (building/company) where I am planning to deploy IP telephony was recently acquired by our company. It is located 300m away from us so probably we will be connecting it to our LAN(either fiber or wireless). The building has a meium sized PBX (approx. 200 extensions). After the acquisiton there were plans to have a tie line between our PBX and the acquired one, but those plans were scratched since the latter broke down (and I got my chance). Since not many employees remain in the acquired building, the number of extensions required is around 30.
I got a suggestion from a Cisco Partner and would like to know your comments:
- VG248 Analogue Gateway
- 2821 with CCME (48 phones), 2 x 4port VIC FXO (universal), 2 x channel packet voice/fax dsp module, 1 x Ip communications high density digital Voice NM with 1 T1/E1
The idea is to use the existing telephones in order to keep cost minimum.
- I would like to know that if we have 6 direct lines (PSTN) that will terminate on the FXO, there would be no need for an E1 line hence no need for the 2821 E1 card, right?
- Will the caller ID function on the existing phones using this design?
I quickly checked the EVM specs and found that only 1 is supported on 2821. This means that there is no room for future expansion if more extensions are required. I am thinking of getting VG248 and CCM MCS hardware (probably 100 uer license). And probably I can add an EVM to the 2821 if more ext. are required.
Please tell me if there are any other ideas that support future expansion.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
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Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
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