2-15
Cisco BTS 10200 Softswitch SIP Feature and Provisioning Guide, Release 5.0
OL-12397-13
Chapter2 SIP Subscribers
Comparison of SIP-Based Features and MGCP-Based Features
Call Waiting Deluxe
Interrogation
CWDI Varies with phone functionality.
Calling Identity Delivery
and Suppression (Delivery)
2
CIDSD Presentation status from the phone, and single-stage digit collection.
Calling Identity Delivery
and Suppression
(Suppression) 2
CIDSS Presentation status from the phone, and single-stage digit collection.
Calling Identity Delivery
on Call Waiting
CIDCW Functionality provided by the phone. Cisco BTS 10200 supports the interface.
Calling Name Delivery 3CNAM Same as MGCP.
Calling Name Delivery
Blocking
CNAB Presentation status from the phone, and single-stage digit collection.
Calling Number Delivery 3CND The calling party number, if available, is delivered in the From header of the
outgoing INVITE from the BTS 10200 to the terminating SIP phone. The
number is delivered to the SIP phone even if the CND feature is not
provisioned for the subscriber.
Calling Number Delivery
Blocking
CNDB Presentation status from the phone, and single-stage digit collection.
Cancel Call Waiting CCW Functionality provided by the phone. Cisco BTS 10200 supports the interface.
Class of Service COS CoS Screening supported, without Auth/Account code collection.
Custom-Dial-Plan CDP Same as MGCP.
Customer Originated Trace COT Same as MGCP.
Directed Call Pickup
without Barge-in
DPN Not supported.
Directed Call Pickup with
Barge-in
DPU Not supported.
Distinctive Alerting Call
Waiting Indication
DACWI This feature is provided to Centrex users only.
Provisioning for SIP does not differ from provisioning for MGCP. However,
the delivery method for DACWI is different.
The Centrex administrator provisions a list of DNs that are to receive DACWI
tones.
In MGCP, the phone plays the tone specified by the BTS10200 in the protocol
message. In SIP, the tone provisioned for the DN is specified by the BTS10200
in the Alert-Info header of the INVITE as a file URL. A SIP phone, if capable,
interprets this header and plays the specified distinctive ringing or call-waiting
tone.
Table2-1 MGCP Features and SIP Support (continued)
MGCP-Based Feature Abbreviation Support for SIP Phone Compared to Support for MGCP-Based Phone