VOIP home lab with cisco 2620 and VIC-2FXO port

Hi all,
I m considering building a home lab for studying CCVP, the lab would be based on the follow components :
- CUCM 8.X (already installed)
- A couple of soft phones running in VMWARE with IP Blue and CIPC (they are already in place and registered with the CUCM)
- Cisco router 2620 with NM-2V and VIC-2FXO-M2 (for europe, I'm in France)
so here are my questions :
1/ it looks like the NM-2V comes with integrated DSP, so I should not need more DSP, I have got one PSTN analogic line only so I can make only one call at a time, please confirm
2/ my analog line comes via my home internet provider dsl box, i have already tried to connect an analog phone and it works, please confirm the router will be able to receive and place calls
thanks for your help, I m looking forward to begin my voice lab

1. Yes, the NM-2V has built-in DSP resources for up to four calls (max voice port density with two 1st generation VICs). You cannot add further DSP chips to the NM-1V/2V, nor would you need to for what it does. You have one PSTN phone line, thus you can only make one call at a time. If you had a second line you could use the other FXO port for a second concurrent call.
2. If the phone line works then it will work with the router to make and receive calls. As Gregory said, just configure dial peers for what you need to do.
Here is some info on the NM-2V:
http://www.cisco.com/en/US/products/hw/modules/ps2617/products_tech_note09186a0080094ac0.shtml

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Tesserax wrote:
I have Cisco EPC3925 ( Its main thing I think its router - right ? )
Yes, the Cisco EPC3925 is a combination modem and wireless router or gateway device. This is the device that you would need to configure for port forwarding/mapping.
Then I have connected Airport Express to it with ethernet cable ( It's working as DHCP and NAT I have double nat issue in my airport program I don't know what is this )
A "Double NAT" condition is when you have two or more routers in series where they all have NAT enabled. NAT is a service that is intended to allow you to share one Public IP address with multiple Private network clients. This is what allows you to have more than one computer on your local network have the ability to share an Internet access.
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also Airport Express is set to create a Wi-Fi network, then I have connected Airport Extreme with Wi-fi and set to exceed wi-fi network and can't change anything in it , can't open ports etc. etc.
You will need to reconfigure the Express as a bridge. The fact that you have configured the Extreme to extend its wireless range is fine.
Also I've been looking in Airport Express ( the 1st device ) and I saw that there I can open ports , but I opened them and nothing happend ... ports are still closed
You do not want to open ports on the Express. Again, if you reconfigure it as a bridge you won't need to as all of its ports will be opened.
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Please friend tell me you can help me ..
Message was edited by: bolo822

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VOIP home lab with cisco 2620 and VIC-2FXO port

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