[h323plus] Q.931 IE length

Paul E. Jones paulej at packetizer.com
Mon Jan 31 22:12:43 EST 2011


Per H.225.0: User-user


Length of user-user contents
- Shall be 2 octets instead of 1 (as in Figure 4-36/Q.931).



> -----Original Message-----
> From: h323plus-bounces at lists.packetizer.com [mailto:h323plus-
> bounces at lists.packetizer.com] On Behalf Of Alessandro Angeli
> Sent: Monday, January 31, 2011 8:14 PM
> To: h323plus at lists.packetizer.com
> Subject: [h323plus] Q.931 IE length
> This question is not strictly related to the software, but I was looking
> at a network dump of the call setup and noticed that the UUIE length is
> 2 octects. However Q.931-1998:4.5.1 always refers to a 1-octect length
> for all var-len IEs and I can not seem to find anywhere in Q.931 or
> H.225.0 where a 2-octect length is allowed. Where is this rule stated?
> --
> Alessandro

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