I would like to replace the company ´s PBX with IP telefoni and MPLS. We have 8 locations mostly range from 2 PC 's to 7 PC 's accept on the main location with 40 PC 's. What kind of Cisco switches and routers should i invest on ?
It depends on whether you want to use Cisco CallManager or not: I would suggest Call Manager running at the central site, probably with a Catalyst 4006 as Ethernet switch (use the external power subsystem to provide power to the telephone handsets, or use the Inline Power PatchPanel if you already have an Ethernet switch). Which router you use depends on how you are connecting to the PSTN: if you are using Primary Rate ISDN, you could use the access gateway module in the 4000 to provide PSTN interface; alternatively, use a 26xx/36xx to provide it).
For smaller offices, I was going to suggest a 3524XL-PWR Ethernet switch (inline power for phones) and a 2620 with analogue voice modules for PSTN connectivity in case the central site link fails (using Survivable Remote Site Telephony feature in the router and Call Manager), but I was looking for information on the 4000 earlier and saw the new Catalyst 4224, which is an integrated switch and router, providing power to phones, Ethernet switching (including automatic VLAN setup), voice gateway and other features. Information is at
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.