You can use the SDP parameter a = 'sendonly' or a = 'recvonly'

----- Original Message ----
From: Darshan Bildikar <[EMAIL PROTECTED]>
To: [email protected]
Cc: Padma Priya R <[EMAIL PROTECTED]>
Sent: Tuesday, 12 December, 2006 6:04:38 PM
Subject: [Sip-implementors] About hold criteria

I need to send a hold SDP to a UA. 

Different UA's make different assumptions on what exactly constitutes a hold
SDP. Hence I set, 

1) c=0.0.0.0
2) The port in the "m" line to 0
3) All streams marked as "inactive"

Is anyone aware of a restriction that does not allow me to mark c="0.0.0.0"
and set the port in the media line to 0? Is there a problem with what I'm
doing?



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