Hardware for H.323 trunk on NEC IPS2000

[telecomadmin12]

I would like to connect a NEC IPS2000 to another PBX using IP trunks and have questions about the necessary hardware.
Now I know for SIP trunks I would need PN-8IPTA.
What hardware would I need for H.323 trunks?

Thank you.

 

[belevedere]

You would need IPT cards with 4-VCT cards. Each IPT handles 16 trunks with 1 to 4, 4-VCT cards. You can do 4, 8, 12 or 16 trunks per IPT card. They do require specific mounting locations. I suggest you get hold of an installation manual (

http://www.wedophones.com)

and read up on it. The IPT cards are expensive if you can get them, and it connects between 2 IPS systems. It cannot go to another MFG. PBX. Those cards also run hot. This was NEC's first attempt at IP trunking, and although it worked, it was not a good or durable solution.

 

[belevedere]

Sorry, you need to find a "System" manual. That covers IP features on the system.

 

[telecomadmin12]

Thanks for your quick reply.
In fact I want to connect to another PBX (not IPS) over a VPN connection.

The SIP card is also quite expensive.

I could also use analog trunks or ISDN PRI using a VoIP gateway.

Do you know what hardware I would need for ISDN or analog (CallerID capable) trunks?

 

[OzzieGeorge]

ISDN would be your best bet as analogue trunks are a one way affair whereas you can use indial with the ISDN. There are a number of options for the cards as even the ones from the old IVS will work in the IPS however the older ones are a two card set whereas the newer ones are all on one card. You can download the ISDN manual from wedophones and that will give you all the info you need. I won't suggest cards as we have different cards (ours are 30 channel ETSI and yours are 24 channel).

One thing worthy of note is that the IPS can not act as the exchange side of an ISDN service but as you will probably convert to IP before leaving site, it isn't a problem as Cisco routers can act as the exchange side. I actually use one in my lab for testing purposes.

 

[telecomadmin12]

Thanks OzzieGeorge.
Just a question of clarification. Why would analog trunks be a one way affair? I would be terminating them on a gateway that converts to IP before leaving the site.
You mean these trunks would allow calls in one direction only?

 

[OzzieGeorge]

Because an analogue trunk simply terminates on the system, it has no indial capability. in order to handle the incoming call on an analogue POTS someone would have to act as an operator and transfer the call coming in to wherever it really wants to go to. With ISDN you can outdial and indial. You can call both ways but not without the intervention of someone on the incoming with an analogue trunk unless you DIT the trunk and that would mean having a trunk for each destination extension. Could be a lot of trunks.