Cisco Systems OL-12397-13 SIP User Authentication

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Cisco BTS 10200 Softswitch SIP Feature and Provisioning Guide, Release 5.0

OL-12397-13

Chapter2 SIP Subscribers

SIP User Authentication

SIP User Authentication

The BTS 10200 can act as an authentication server. Authentication is enabled on the serving domain

through provisioning.

Whenever a SIP request is received from a SIP subscriber, the request is authenticated to ensure it is

indeed from an identified user. Authentication also enables request authorization, because users may be

authorized to perform only specific requests.

The following examples are the functional scenarios in which authentication is required:

1. When a SIP user registers a contact with the BTS 10200 Registrar using a REGISTER request.

2. When a SIP user initiates a call using an INVITE request.

3. When a SIP user sends any request in an ongoing call. Examples include

–

Re-negotiation of the call parameters using a re-INVITE

–

Terminating the call using a BYE

–

Initiating a call transfer using a REFER

4. When a SIP user sends a request outside a dialog. Example: OPTIONS.

The following tables affect authentication for SIP subscribers:

•AOR

•Serving Domain

•Auth-Realm

•User-Auth

See the Cisco BTS 10200 Softswitch CLI Database for more information about the tables.

Contents

Main CHAPT ER SIP Subscribers SIP Phone Initialization IP Provisioning a SIP Subscriber SIP Registration and Security Enhanced SIP Registration Description Provisioning Commands Provision a New SIP Subscriber Enable or Disable Secure FQDN for an Existing Subscriber Operations No Calls to or from an Unregistered Secure-Provision SIP Endpoint Third-Party Registrations for Secure FQDN Endpoint Not Allowed Cisco BTS 10200 Challenges Registration Registration Expires Call Processing Validation Received SIP Response Message Rules for Sending a SIP INVITE Message from the BTS 10200 Validation of ACK Request Measurements Events and Alarms SIP User Authentication SIP Subscriber Calls Provisioning Session Timers for SIP Subscribers SIP Timer Values for SIP Subscribers Diversion Indication for SIP Subscribers Comparison of SIP-Based Features and MGCP-Based Features Page Page Page Page Cisco BTS 10200 Softswitch-Based Features Summary Call Forwarding Call Forwarding Activation and Deactivation Call Forwarding to an E.164 Number or an Extension Number Detailed Provisioning Procedure and Feature Description Calling Name and Number Delivery CND CNAM Caller ID Delivery Suppression Customer Access Treatment Direct Inward Dialing Direct Outward Dialing Do Not Disturb E.164 and Centrex Dialing Plan (Extension Dialing) Operator Services (0-, 0+, 01+, and 00 Calls) User-Level Privacy Vertical Service Code Features Planning VSCs In Networks with SIP Subscribers. Supported VSC-Enabled Features for SIP Endpoints Voice Mail VM Actions VM Deposit MWI Notification Retrieving VM VM Implementation for Centrex Subscribers VM Within a Single Centrex Group Provisioning Voice Mail Across Multiple Centrex Groups Jointly Provided Features Text-GUI Features Supported Handsets Supported Features Accessing Features SIP Handset Menu Hierarchy Call Transfer (Blind and Attended) with REFER Distinctive Ringing Distinctive Ringing for Centrex DID Calls Phone-Based Features