Subject: [Megaco] Tunneling of ISUP using MEGACO

From: "Kaul, Bharat" <[email-masked]>
Date: Fri, 9 Nov 2001 13:59:03 -0800

"What does tunneling of Q.931 or V.52 signalling messages through MEGACO
mean ? Where is it used ? How do we tunnel Q.931 or V 5.2 signalling
messages through megaco?"
 
Is there is document that can explain this ?
 
- Bharat

---

From: "Tom-PT Taylor" <[email-masked]>
Date: Sat, 10 Nov 2001 10:03:03 -0500

Christer said how to do it, but it would be a mistake.  Some people in the
past have maintained that carrying the signalling along with the media
gateway control messages is really useful, but Megaco wasn't designed to
meet the requirements for carrying signalling.  If one wants to be sparing
in the use of stacks, perhaps the answer would be to run Megaco as well as
the relevant SIGTRAN adaptation layer over SCTP.

Here is how the stacks look.

Megaco       Q.931        V5.2
/H.248     ---------   ---------
              IUA         V5UA
           (RFC3057)
--------------------------------
       SCTP (RFC 2960)
--------------------------------
             IP

-----Original Message-----
From: Kaul, Bharat [mailto:[email-masked]]
Sent: Friday, November 09, 2001 4:59 PM
To: [email-masked]
Subject: [Megaco] Tunneling of ISUP using MEGACO

 
- Bharat

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---

From: "Tom-PT Taylor" <[email-masked]>
Date: Sat, 10 Nov 2001 10:03:03 -0500

Megaco       Q.931        V5.2

-----Original Message-----
From: Kaul, Bharat [mailto:[email-masked]]
Sent: Friday, November 09, 2001 4:59 PM
To: [email-masked]
Subject: [Megaco] Tunneling of ISUP using MEGACO

 
- Bharat

---

From: "Marcello Pantaleo (EED)" <[email-masked]>
Date: Mon, 12 Nov 2001 09:07:56 +0100

Tom,

what's the difference in tunneling Q.931/V5.2 and CAS?
Don't Basic CAS and R2 packages propose a mechanism for 
carrying signalling using Megaco? 

/Marcello
-----Original Message-----
From: Tom-PT Taylor [mailto:[email-masked]]
Sent: Saturday, November 10, 2001 4:03 PM
To: 'Kaul, Bharat'; [email-masked]
Subject: RE: [Megaco] Tunneling of ISUP using MEGACO

Megaco       Q.931        V5.2

-----Original Message-----
From: Kaul, Bharat [mailto:[email-masked]]
Sent: Friday, November 09, 2001 4:59 PM
To: [email-masked]
Subject: [Megaco] Tunneling of ISUP using MEGACO

 
- Bharat

---

From: "Marcello Pantaleo (EED)" <[email-masked]>
Date: Mon, 12 Nov 2001 09:07:56 +0100

Tom,

/Marcello
-----Original Message-----
From: Tom-PT Taylor [mailto:[email-masked]]
Sent: Saturday, November 10, 2001 4:03 PM
To: 'Kaul, Bharat'; [email-masked]
Subject: RE: [Megaco] Tunneling of ISUP using MEGACO

Megaco       Q.931        V5.2

-----Original Message-----
From: Kaul, Bharat [mailto:[email-masked]]
Sent: Friday, November 09, 2001 4:59 PM
To: [email-masked]
Subject: [Megaco] Tunneling of ISUP using MEGACO

 
- Bharat

---

From: "Tom-PT Taylor" <[email-masked]>
Date: Mon, 12 Nov 2001 08:46:22 -0500

CAS is not tunneled -- it is interpreted and retranslated into Megaco/H.248
syntax.  The handling of CAS is inherent in the Media Gateway function,
since it requires the use of the same DSPs that handle media conversions.

-----Original Message-----
From: Marcello Pantaleo (EED) [mailto:[email-masked]]
Sent: Monday, November 12, 2001 3:08 AM
To: Taylor, Tom-PT [CAR:B800:EXCH]
Cc: 'Kaul, Bharat'; Christer Holmberg (LMF); [email-masked]
Subject: RE: [Megaco] Tunneling of ISUP using MEGACO

Tom,

/Marcello
-----Original Message-----
From: Tom-PT Taylor [mailto:[email-masked]]
Sent: Saturday, November 10, 2001 4:03 PM
To: 'Kaul, Bharat'; [email-masked]
Subject: RE: [Megaco] Tunneling of ISUP using MEGACO

Megaco       Q.931        V5.2

-----Original Message-----
From: Kaul, Bharat [mailto:[email-masked]]
Sent: Friday, November 09, 2001 4:59 PM
To: [email-masked]
Subject: [Megaco] Tunneling of ISUP using MEGACO

 
- Bharat

---

From: "Tom-PT Taylor" <[email-masked]>
Date: Mon, 12 Nov 2001 08:46:22 -0500

-----Original Message-----
From: Marcello Pantaleo (EED) [mailto:[email-masked]]
Sent: Monday, November 12, 2001 3:08 AM
To: Taylor, Tom-PT [CAR:B800:EXCH]
Cc: 'Kaul, Bharat'; Christer Holmberg (LMF); [email-masked]
Subject: RE: [Megaco] Tunneling of ISUP using MEGACO

Tom,

/Marcello
-----Original Message-----
From: Tom-PT Taylor [mailto:[email-masked]]
Sent: Saturday, November 10, 2001 4:03 PM
To: 'Kaul, Bharat'; [email-masked]
Subject: RE: [Megaco] Tunneling of ISUP using MEGACO

Megaco       Q.931        V5.2

-----Original Message-----
From: Kaul, Bharat [mailto:[email-masked]]
Sent: Friday, November 09, 2001 4:59 PM
To: [email-masked]
Subject: [Megaco] Tunneling of ISUP using MEGACO

 
- Bharat