Subject: [AVT] Undocumented tone events in 2833/2833bis

From: Tom Taylor <[email-masked]>
Date: Wed, 10 Nov 2004 14:45:33 -0500

There are a number of codepoints defined in draft-ietf-avt-rfc2833bis-05.txt 
section 3.4 "Extended Subscriber Line Events" for which descriptions are not 
available.  It was agreed at today's meeting that undocumented codepoints should 
be deleted.  I propose the definitions shown below for some of these events, based 
simply on their names.  I propose to delete the remainder unless someone can 
provide convincing definitions for their use.

Tones for deletion:
- Acceptance tone
- Facilities tone
- Offering tone
- Refusal tone
- Route tone
- Valid tone

Proposed tone definitions:

End of three party service tone
Tone provided to the remaining parties to a call when the call reverts from a 
three-way conference to a two-party call.

Preemption tone
Tone provided to each party to a call which has been terminated due to preemption.

Queue tone
Tone provided to a calling party when the call has been placed into a queue 
awaiting answer.

Waiting tone
Tone provided periodically to a waiting calling party after the call has been 
placed into a queue, until the call has been answered.

Warning tone (end of period)
Tone provided to the paying party for a call to indicate that the period for which 
payment has been credited will soon expire.

Warning Tone (PIP tone)
Tone provided to the paying party for a call to indicate that expiry of the period 
for which payment has been credited is imminent.

Comments?

-- 
Tom Taylor
Carrier VoIP Standards Development
Nortel Networks
Phone +1 613 763 1496  (ESN 393-1496)
E-mail: [email-masked]

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