[Asterisk-Users] SS7 signaling/Softswitch

[CW_ASN - Gus]

Brad:

Lucent 5ESS can treat a PRA (PRI) like a CCS7 or R2 route. This feature
allow to route any number, including numbers outside the DID range. I know
some class 5 switches (Lucent, Siemens, Ericsson, Nec, Alcatel and Italtel),
and only Lucent 5ESS and Siemens EWSD provides this feature (at least in
world-wide market, I mean, non US market). If you like to connect a VoIP
gateway, in the 5ESS you can route any number, like local, national or
international. I have * connected to our 5E switch, and it works good.

PRI was defined as the ISDN termination for customer side in 'high-speed'
Nx64 or Nx56; supports all advanced features provided by ISDN and in general
terms, provides full mapping for ISUP layer 4 data.
At least for EuroISDN, for IN and AIN features, PRI only provides voice
connection with SSP switch. PRI doesn't have a special messages replacing or
adding features to INAP, because it haven't a message structure neither
querys nor commands (you can't specify triggers in PRI signalling), only for
ISDN termination related to call establishment.


Regards,

Gus


----- Original Message -----
From: "Brad Waite" <brad at wcubed.net>
To: <asterisk-users at lists.digium.com>
Sent: Monday, October 27, 2003 5:21 PM
Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch


> CW_ASN - Gus wrote:
>
> > Anyway, in certanly implemetations you don't need CCS7 to connect to CO.
You
> > always can connect with PRI... same speed and same functionalities to
user
> > side. In fact, CCS7 is the support for ISDN-PRI avanced features. If you
> > could connect with Lucent 5ESS you can have a PRI treated as route...
>
> Gus,
>
> I'm not following you here when you say, "...you can have a PRI treated as
> route..."  Can you clarify?
>
> I'm trying to determine what AIN features may be available on a PRI D
channel.
> I know the D channel is a near extension to SS7, but I don't know what
subset of
>   queries/commands are available between the two.
>
> Brad Waite
> W Cubed
>
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