MathieK, was the last post for another thread?
With regards to Nice and Witness, if you are recording VoIP, especially if it is a 'green field' install, you will cut down on some of your cost.
As I said we record lineside which means that each of the phones that needs to be recorded is physically connected to the call recording logger. This is a massive overhead for doing moves and changes and also adds to the complexity of the solution making it more expensive to support. Currently our call centres (we have several distributed across several buildings in HO) may have for example 100 desks, of which only 40-60 are taking calls at any one time (although cost saving measures mean this is changing). This means we are paying for more capacity than we use.
Compare this to VoIP where you license to the maximum number of concurrent agents on line. E.g you can configure 100 agents but only pay to record up to 60 at any one time. Additionally, there is minimal cost associated with moves and changes as in an IP world, users have extension mobility and it is the user that the logger is recording and not a particular set (that's not to say that the physical set doesn't need to be taken in to account when setting up recording).
Further benefit can be gained from integrating to your call recording supplier e.g. create an application on the phone that allows you to tag calls with an outcome, a policy number etc. Other benefits include the recording of the calls as two seperate streams (Nice support this, not sure about Witness) i.e. you can listen to one half of the call if there is a lot of shouting or distortion. Most VoIP solutions also support record on demand. When using RoD, users who don't have a requirement to be recorded all of the time e.g. team managers can be set as RoD. If they receive a call which they realise halfway through they should record, they can record the call in its entirety.
Nice records the VoIP packets by sniffing the SPAN ports of the switches the phones are attached to. This means you are limited to how many phones you can record by the number of SPAN ports on the switch (you are likely to want to keep one freen to attach a network sniffer to in the case of network issues too). The Witness solution has no reliance on using SPAN ports, but instead creates a duplicate VoIP stream that it sends to the recorder. This does have the disadvantage of increasing data traffic on your network. Nortel are apparently to license this to Nice as well.
So in summary, VoIP recording is very powerful. The amount of money you spend can be enormous, but a simple solution with none of the bells and whistles shouldn't be prohibitively expensive. I have worked with Nice products for many years and only seen the Witness solution demo'd. I would say Nice would win in terms of functionality (it's a BMW compared to Witness's Ford). The strategic tie up with Nortel is a bonus for Witness though. If you are a Symposium user (now CC6), Nortel's strategy is integration of its products into a single management front end (web, email, outbound, inbound, reporting). It would make sense to also integrate call recording although I don't believe it's currently on their road map.
Hope all this helps
DD