Subject: [Sip] Question about supplementary services in SIP

From: Oscar Alonso Sánchez Hernández<[email-masked]>
Date: Mon, 9 Apr 2007 10:27:38 -0500

Hello

We are looking for any RFC in order to deploy "Call Waiting" and "Third Party Conference" services with SIP, but we have not found any standard regarding with these services.

Could you tell us the RFCs that define the syntax and signaling sequence of these services ?

Best regards

Oscar Alonso Sánchez Hernández
Mauricio Eduardo Cajas Burbano

Orbitel SA ESP

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