TB30s SIP Administrator Guide v1.3
Page 159 of 259
Services Supervision Feature.
This feature describes how TB30 can request for a user profile and receive
notifications related to a set of services implemented by the network like:
- DND activation status
- Call Forward activation status
- etc….
A few comments first. SIP User Agents require configuration data to
function properly. A configuration data set, specific to an entity, is termed a
profile. Process to get this profile could be automatic with no user
intervention. In our scope, Service variables supervision is performed using
the
User Profile
.
So, to support this new feature, TB30 has implemented the “ua-profile”
Event Package as described in "draft-ietf-sipping-config-framework-xx.txt".
This framework provides a standard means of providing dynamic
configuration and also addresses change notifications when profiles change.
The content or format of the profile will be defined below.
There are 3 stages for the profile delivery process: enrollment, content
retrieval and change notification. The behaviour of the phone in each state is
as follows:
A) Enrollment: TB30 requests and receives its profile data.
After a successful registration process, TB30 will generate an initial
SUBSCRIBE request for the event package “ua-profile” to the SIP server in
order to be notified for the state of subscribed services for this account.
The initial SUBSCRIBE Request-URI, To and From headers are set to the
account, and includes an Event and Accept headers as follows:
SUBSCRIBE sip:[email protected]:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.0.0.55:5060;branch=z9hG4bK4696915359658109209-910168
From: <sip:[email protected]:5060>;tag=c0a80101-de357
To: <sip:[email protected]:5060>
Call-ID: [email protected]
CSeq: 1 SUBSCRIBE
Max-Forwards: 70
Event: ua-profile;profile-type=user
Accept: application/service-user-xml
Expires: 3600
Contact: <sip:[email protected]:5060;user=phone>
Allow-Events: refer,dialog,message-summary,check-sync,talk,hold
User-Agent: THOMSON TB30 hw0 fw1.62 00-0E-50-4E-88-E0
Content-Length: 0
Then, SIP Server receives successfully this Subscribe and identifies the
requested profile data. It prepares a SIP NOTIFY message to TB30 with the
ua profile data inserted inside the body, and sends it immediately to
complete the enrollment.
Содержание TB30
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