Cisco Unified MeetingPlace Release 8.0 -- Configuring Reservationless Single Number Access (RSNA) for Cisco Unified MeetingPlace

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Main page: Cisco Unified MeetingPlace, Release 8.0

Up one level: Configuration


Note: In this document, a "system" refers to a complete Cisco Unified MeetingPlace site installation, which includes one active Application Server and one active Media Server. The system might also include one or more Web Servers.


Contents

About RSNA


RSNA

The Reservationless Single Number Access (RSNA) feature allows multiple Cisco Unified MeetingPlace systems to appear as one system to the user community. Any user who hosts (as a profiled user) or attends (as a profiled user or as a guest) a reservationless meeting can join the meeting by dialing the access phone number of the Cisco Unified MeetingPlace system that is local to that user, regardless of which system is hosting the meeting. Users are then redirected to the system that is hosting the meeting.


Dial Prefixes

Dial prefixes are applied to transfer addresses when call transfers are routed through Cisco IOS voice gateways. Cisco Unified MeetingPlace uses the first applicable method in Table: Options for Configuring Dial Prefixes to determine the dial prefix for each remote server.


Table: Options for Configuring Dial Prefixes
Method

How and When to Use This Method

1

Extended dial prefix

Use this option to control the type of codec used when performing call transfers between particular Cisco Unified MeetingPlace systems.


You configure the Routing Unit Number and Routing Codec fields with non-default values for each remote server. The system uses the configured values to create a four-digit dial prefix UUCC, where:

  • UU is the Routing Unit Number (with a leading 0 if necessary)
  • CC represents the codec


The codec digits are:

  • G.711U-01
  • G.711A-02
  • G.729-03
  • G.729a-04
  • G.729b-05
  • G.722-06
  • ILBC-07

Note: On the Cisco IOS voice gateway, make sure that you specify the same codec in the dial peer configuration.

Note: The Cisco Unified MeetingPlace Application Server supports 711a, 711u, 722, 729a, 729b, ILBC codecs when configured to use the hardware Media Server. The server supports 711a, 711u, 722, 729a when configured to use the Express Media Server.


See the Example Configuration for Extended Dial Prefix.

2

Common dial prefix

Use this option when you want all Cisco Unified MeetingPlace systems to use the same dial prefix and the same codec for all call transfers.


You configure the Dial prefix field on the Remote Server Configuration Page so that the field is not blank. The system uses the configured Dial prefix for all remote servers. To enable the Dial prefix field, the Routing Codec field must be set to None.


Consult your telephony administrator to determine the Dial prefix required by your routing plan. Cisco IOS-based routing typically requires a 4-character dial prefix, while Cisco Unified Communications Manager-based routing does not require a dial prefix at all.

Note: If you configure the Dial prefix, each RSNA systems must be configured to use the same dial prefix.


See the Example Configuration for Common Dial Prefix.

3

Default dial prefix

For simplicity, we recommend that you use this option.


You leave these fields with the default values:

  • Dial prefix-blank
  • Routing Unit Number-0
  • Routing Codec-None


The system generates a 13-character dial prefix by combining the following:

  • 12-digit IP address in the SIP Agent Address 1 remote server field
  • The character "x"


For example, if the transfer IP address is 172.27.1.1, the generated dial prefix is 172027001001x.

Related Topics


RSNA Reserved Meeting Server

The RSNA Reserved Meeting Server feature allows a single Application Server to host reserved meetings within an RSNA-based network. Typically, all meeting reservations are on the one designated Reserved Meeting Server. When users attend meetings by accessing their local server, if their local server does not recognize the meeting ID, it transfers the user to the Reserved Meeting Server.


Note: You must synchronize the server times between the local Application Server and the Reserved Meeting Server.


The local server attempts to transfer calls to the Reserved Meeting Server if all of these conditions are true:

  • The Reserved Meeting Server feature has been configured on the local server:
    The local server must be configured with a remote server record in which the Reserved Meeting Server check box is checked.
    If you want any user profiles to identify the remote Reserved Meeting Server as the Schedule home server, create a duplicate remote server record in which you do the following:
    • Do NOT check the Reserved Meeting Server check box.
    • Enter a Home Server number in the range 0 to 999.
    • Make sure that all other fields are identical between the duplicate records for the Reserved Meeting Server.
  • The meeting ID that the user entered does not match the meeting ID of any meetings scheduled around that time on the local server.
  • The meeting ID that the user entered does not match any user profile, active or not.
  • The user confirms the meeting ID.


In addition, consider the following behavior of the RSNA Reserved Meeting Server feature:

  • This feature does not prevent meetings from being scheduled locally and will not warn or transfer a user who attempts to schedule a meeting locally.
  • If a meeting is scheduled on a server other than the Reserved Meeting Server, this feature will not facilitate attendance of that meeting.
  • A locally scheduled meeting always takes precedence over a remote one. This rule applies even if a local meeting recently ended and the user hears that meeting is over.
  • If the meeting does not exist on the remote system, the system prompts the user for a meeting ID after the transfer.


Related Topics

Prerequisites for RSNA


Related Topics

Restrictions for RSNA

  • Only two RSNA systems (sites) are currently supported.
    • Both RSNA systems must use the same Type of media server setting; for example, they must both be set either to Express Media Server or to Hardware Media Server.
    • Both RSNA systems must use the same type of connectivity; for example, with connectivity through Cisco Unified Communications Manager or through Cisco Unified Border Element (CUBE) connected node.
  • RSNA is not supported with web conferencing integrations (Cisco WebEx and IBM Lotus Sametime).
  • Meeting recordings are stored only on the Web Server that is associated with the Schedule home server for the meeting owner. To access meeting recordings, the users must know the URL of the Web Server that you assigned to the meeting owner.
  • The system cannot strongly authenticate users by password when they are transferred between servers. This causes the following restrictions for profiled users who are transferred into a meeting:
    • Recorded names are not permanently stored on the system.
    • When leaving the meeting, the users are treated as unidentified.


Related Topics

How to Configure RSNA


Enabling RSNA

Complete this task on each Cisco Unified MeetingPlace system for which you want to enable RSNA.


Before You Begin

Read these topics:


Procedure
  1. Sign in to the Administration Center.
  2. Select System Configuration > Remote Server Configuration.
  3. Set the Enable RSNA field to Yes.
  4. Select Save.


Related Topics


What To Do Next

Proceed to the Configuring the Remote Servers.

Configuring the Remote Servers

Complete this task on each RSNA system.


Before You Begin


Procedure
  1. Sign in to the Administration Center.
  2. Select System Configuration > Remote Server Configuration.
  3. Select Add New, or select an existing entry.
  4. Configure the fields on the Add Server Configuration Page.
  5. Select Save.
  6. Repeat Step 3 through Step 5 to add a server entry for each remote RSNA system.
  7. (Optional) Complete these steps to configure a Common dial prefix to apply to all call transfers.
    Note: If you configure the Dial prefix, all RSNA systems must use the same dial prefix. For simplicity, we recommend that you instead configure each RSNA system to use the Default dial prefix. For details, see the Dial Prefixes.
    1. Click Remote Server Configuration.
    2. Configure the Dial prefix field.
    3. Click Save.


Related Topics


What To Do Next

Proceed to one of these topics:

How to Configure Call Control for RSNA in a Cisco Unified Communications Manager Environment

Complete these tasks, in the order shown, on each Cisco Unified Communications Manager node that is attached to a Cisco Unified MeetingPlace RSNA system.


Configuring Cisco Unified Communications Manager: SIP Trunk to Remote RSNA System

In this task, you connect the local Cisco Unified Communications Manager to each remote Cisco Unified MeetingPlace RSNA system.


Before You Begin
  • Configure non-RSNA call-control for each Cisco Unified MeetingPlace system as described in the Configuring Call Control for Cisco Unified MeetingPlace module.
  • We recommend that you create a SIP trunk security profile in Cisco Unified Communications Manager specifically for Cisco Unified MeetingPlace.
See Configuring a SIP Trunk Security Profile in Cisco Unified Communications Manager for Cisco Unified MeetingPlace in the Integrating Cisco Unified MeetingPlace with Cisco Unified Communications Manager module.
  • You perform this task in the Cisco Unified Communications Manager Administration pages. Because the pages and menus vary by release, you should check the Cisco Unified Communications Manager Administration online help for step-by-step instructions that are specific to your release.


Procedure
  1. Go to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
  2. Sign in to Cisco Unified Communications Manager Administration.
  3. Select Device > Trunk.
  4. Select Add New.
  5. In the Trunk type field, select SIP Trunk.
  6. Select Next.
  7. Configure the fields described in Table: Fields for Adding a SIP Trunk in Cisco Unified Communications Manager Release 6.1 (or Later).


Table: Fields for Adding a SIP Trunk in Cisco Unified Communications Manager Release 6.1 (or Later)
Field Action

Device Name

Enter a unique identifier for this trunk, such as the name or IP address of the remote Cisco Unified MeetingPlace Application Server.

Device Pool


AAR Group

The device pool must use a codec that is compatible with the conferencing gateway (or bridge).


For security and toll fraud prevention, use a device pool and an automatic alternate routing (AAR) group that will block any undesired phone numbers from being dialed out.

Media Termination Point Required

Uncheck this check box.

Destination Address

The DNS hostname or IP address of the remote Cisco Unified MeetingPlace server.

Destination Port

Keep the default value of 5060.

SIP Trunk Security Profile

Select the SIP trunk security profile that you created specifically for Cisco Unified MeetingPlace.


If you did not create a SIP trunk security profile, select the default Non Secure SIP Trunk Profile.

DTMF Signaling Method

Select No Preference.


8. Configure all other required fields appropriately for your current deployment.
Tip: For field descriptions, select Help > This Page.
9. Select Save.
10. Repeat this task to add a SIP trunk to each remote Cisco Unified MeetingPlace RSNA system.
What to Do Next

Proceed to the Configuring Cisco Unified Communications Manager: SIP Route Patterns to Remote RSNA Systems.

Configuring Cisco Unified Communications Manager: SIP Route Patterns to Remote RSNA Systems

In this task, you enable the local Cisco Unified Communications Manager to route calls to each remote Cisco Unified MeetingPlace RSNA system.


Before You Begin


Restriction

By associating a SIP route pattern to a SIP trunk, you can no longer put the SIP trunk in a route group. If, for some reason, you need to put the SIP trunk in a route group, create duplicate SIP trunks. Specifically, for each SIP trunk that is associated with a SIP route pattern, create an identical SIP trunk that is not associated with a SIP route pattern.


Procedure
  1. Go to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
  2. Sign in to Cisco Unified Communications Manager Administration.
  3. Select Call Routing > SIP Route Pattern.
  4. Select Add New.
  5. Configure the fields described in Table: Fields for Adding a SIP Route Pattern in Cisco Unified Communications Manager Release 6.1 (or Later).


Table: Fields for Adding a SIP Route Pattern in Cisco Unified Communications Manager Release 6.1 (or Later)
Field Action

Pattern Usage

Select IP Address Routing.

Pattern

Enter the IP address of the remote Application Server.

Note: This value must match the SIP Agent Address 1 field that was configured on the local Cisco Unified MeetingPlace system to identify the remote system.

SIP Trunk

Select the SIP trunk that you configured in the Configuring Cisco Unified Communications Manager: SIP Trunk to Remote RSNA System.


6. Configure all other required fields appropriately for your current deployment.
Tip: For field descriptions, select Help > This Page.
7. Select Save.
8. Select OK to any pop-up dialog box messages that you see.
9. Repeat this task to add a SIP route pattern to each remote Cisco Unified MeetingPlace RSNA system.
What to Do Next

Repeat the tasks in the How to Configure Call Control for RSNA in a Cisco Unified Communications Manager Environment for each Cisco Unified Communications Manager node that is attached to a Cisco Unified MeetingPlace RSNA system.


Then proceed to the How to Configure User Profiles for RSNA.

Configuring Call Control for RSNA Using Cisco IOS Voice Gateways

Use this procedure to configure dial peers on voice gateways to route call transfers to the remote Cisco Unified MeetingPlace systems.


Before You Begin
  • Configure non-RSNA call control for each Cisco Unified MeetingPlace system as described in the Configuring Call Control for Cisco Unified MeetingPlace module.
  • You perform this task in the Cisco IOS command-line interface (CLI) of the router. For more information about the Cisco IOS commands used in this procedure, see the Cisco IOS Commands Master List for your Cisco IOS software major release.


Procedure
  1. On the Cisco IOS voice gateway for the remote Cisco Unified MeetingPlace system, enter privileged EXEC mode or any other security level set by a system administrator. Enter your password if prompted.
    Router# enable
  2. Enter global configuration mode.
    Router# configure terminal
  3. Enter dial peer voice configuration mode and define a remote voice over IP (VoIP) dial peer.
    Router(config)# dial-peer voice number voip
    The number is one or more digits that identify the dial peer. Valid entries are from 1 to 2147483647.
  4. (Optional) Provide a comment or description to help you remember what is attached to this interface.
    Router(config-dialpeer)# description string
  5. Route calls to the remote system:
    Router(config-dialpeer)# destination-pattern digits
    • For Cisco Unified MeetingPlace Release 8.0, the destination pattern must match the dial prefix for the remote server. See the Dial Prefixes.
    • For the Extended RSNA Prefix feature, the dial-peer destination pattern must match the Extended Prefix string on the originating Cisco Unified MeetingPlace Application Server for the server being transferred to.
  6. Configure the dial peer to use SIP.
    Router(config-dialpeer)# session protocol sipv2
  7. Configure any IP address.
    Router(config-dialpeer)# session target ipv4:ip-address
    The target IP address is ignored, but it is passed as part of the SIP REFER command. When the voice gateway receives a SIP REFER request with the string matching the RSNA dial peer, the voice gateway forwards the call to the target Cisco Unified MeetingPlace Application Server.
  8. Configure the router to forward dual tone multifrequency (DTMF) tones by using Real-Time Transport Protocol (RTP) with the Named Telephone Event (NTE) payload type.
    Router(config-dialpeer)# dtmf-relay rtp-nte
  9. Configure the codec to use when transferring calls.
    Router(config-dialpeer)# codec [g711ulaw | g711alaw | g729 | g722-64 | ilbc]
  10. Disable voice activity detection (VAD) for the calls using this dial peer.
    Router(config-dialpeer)# [no] vad
  11. Exit the current mode.
    Router(config-dialpeer)# exit
  12. Repeat this procedure on each Cisco IOS voice gateway that is attached to an RSNA system.
Example Configuration for Extended Dial Prefix

The example in Figure: Direct Connection Between a PSTN Gateway and the Application Server using Extended Dial Prefixes shows a topology with two Cisco Unified MeetingPlace Application Servers in the United States. In this scenario, calls that are transferred between the U.S. servers (US1 and US2) use the G.711 codec.

Figure: Direct Connection Between a PSTN Gateway and the Application Server using Extended Dial Prefixes

206567.jpg


On the Application Servers in this example, configuring the Routing Codec field on the Application Server results in the extended prefix values shown in Table: Extended Prefix Values.

Table: Extended Prefix Values
Server Extended Prefix

US1

0101

US2

0201



Note that the actual codec used when transferring calls depends on the dial-peer configuration on the gateway, not on the value of the Routing Codec field. Any codec (other than None) can be chosen for the Routing Codec field to generate the extended prefix. However, the codec you choose for a given server should be consistent across both of the Application Servers to generate the same extended prefix for that server.


Given these prefix values, the U.S. voice gateway would be configured with dial peers that match the extended prefixes:

 !

dial-peer voice 210 voip

description rsna_refer_to_us1

destination-pattern 0101

session protocol sipv2

session target ipv4:10.10.10.1

dtmf-relay rtp-nte

codec g711ulaw

no vad

 !

dial-peer voice 220 voip

description rsna_refer_to_us2

destination-pattern 0201

session protocol sipv2

session target ipv4:10.10.10.2

dtmf-relay rtp-nte

codec g711ulaw

no vad

 !

Example Configuration for Common Dial Prefix

The example in Figure: Direct Connection Between a PSTN Gateway and the Application Server using Common Dial Prefix shows a multi-node RSNA topology with a direct connection between a PSTN gateway and the Application Server. In this scenario, calls that are transferred between servers using a common dial prefix.

Figure: Direct Connection Between a PSTN Gateway and the Application Server using Common Dial Prefix

206568.jpg


Table: Cisco Unified MeetingPlace Application Server Configuration shows the configuration for Node 1 and Node 2.


Table: Cisco Unified MeetingPlace Application Server Configuration
Node 1 Configuration Node 2 Configuration
Remote Server Configuration Remote Server Configuration

Name: Node 2

Name: Node 1

Home server number: 2

Home server number: 1

SIP agent address 1: 171.27.94.212

SIP agent address 1: 171.27.94.210

RSNA Configuration

RSNA Configuration

Enable RSNA: Yes

Enable RSNA: Yes

Dial prefix: 2420

Dial prefix: 2420



The Cisco IOS voice gateway has this configuration:

Incoming dial peer:

 !

dial-peer voice 1 pots

description T1 CAS from PSTN

incoming called-number 9550931

direct-inward-dial

forward-digits all

 !

Outgoing dial peers

 !

dial-peer voice 100 voip

description to_AppServer_Node_1

destination-pattern 9550931

session protocol sipv2

session target ipv4:171.27.94.210

dtmf-relay rtp-nte

codec g711ulaw

no vad

 !

dial-peer voice 200 voip

description to_AppServer_Node_2

destination-pattern 9550931

session protocol sipv2

session target ipv4:171.27.94.212

dtmf-relay rtp-nte

codec g711ulaw

no vad

 !

RSNA SIP REFER dial peer

 !

dial-peer voice 900 voip

description RSAN configure for SIP REFER

huntstop

destination-pattern 2420

session protocol sipv2

session target ipv4:1.1.1.1

dtmf-relay rtp-nte

codec g711ulaw

no vad

 !

Dial peer hunt sequence

dial-peer hunt 1

Troubleshooting Tip

You can use the debug ccsip messages Cisco IOS command to look at SIP REFER messages.


Related Topics


What to Do Next

Proceed to How to Configure User Profiles for RSNA.

How to Configure User Profiles for RSNA

These fields in each user profile must have the exact same values on the RSNA systems:

  • User ID
  • User password
  • Profile number
  • Profile PIN
  • Schedule home server


This is typically accomplished by completing these tasks:

High-Level Task Where to Find Instructions

1

Configure the Schedule home server field through user groups.

Configuring the Schedule Home Server Field in User Groups or User Profiles

2

Synchronize the user database between the two sites.

Configuring User Database Replication for Two Sites in the Configuring Cisco Unified MeetingPlace Directory Service module

3

(Optional) Configure Directory Service on one RSNA system to synchronize Cisco Unified MeetingPlace user profiles with Cisco Unified Communications Manager and configure external AXL authentication.

Configuring Cisco Unified MeetingPlace Directory Service module

4

If you configured Directory Service on one RSNA system, configure external AXL authentication on the other (non-Directory Service) system.

Enabling External User Authentication on the Non-Directory Service RSNA System


Configuring the Schedule Home Server Field in User Groups or User Profiles

Complete this task on each RSNA system.


Before You Begin

Complete the tasks in the How to Configure Call Control for RSNA in a Cisco Unified Communications Manager Environment for each Cisco Unified Communications Manager node that is attached to a Cisco Unified MeetingPlace RSNA system.


Procedure
  1. Sign in to the Administration Center.
  2. Select User Configuration.
  3. Select User Groups or User Profiles, depending on whether you want to configure a user group or an individual user profile.
    Tip: Because Directory Service does not synchronize this particular configuration, we recommend that you configure user groups and allow the user profiles to inherit the group default values.
  4. Select Edit or Add New, depending on whether you want to configure an existing or a new user group or user profile.
  5. Configure the Schedule home server field to match the Home Server number remote server field.
  6. Select Save.
  7. Repeat this procedure for all user groups and (if necessary) user profiles.


Related Topics


What To Do Next

Proceed to Configuring User Database Replication for Two Sites in the Configuring Cisco Unified MeetingPlace Directory Service module.


Enabling External User Authentication on the Non-Directory Service RSNA System

By performing this task, you enable Directory Service users to sign in to either RSNA system. Note that the same Cisco Unified Communications Manager server is used for authentication.


Before You Begin

Complete Step 1 through Step 3 in the How to Configure User Profiles for RSNA.


Procedure
  1. On the non-Directory Service system, sign in to the Cisco Unified MeetingPlace Administration Center.
  2. Select User Configuration > Directory Service > Directory Service Configuration.
  3. Configure these fields, using the exact same values that you entered on the Directory Service-configured system:
    • AXL user ID
    • AXL password
    • AXL confirm password
    • AXL URL
  4. Do not modify any of the other fields on the Directory Service Configuration Page.
    • If you think you accidentally modified any of the other fields, select Cancel and return to Step 2.
    • If you think you accidentally modified and saved any of the other fields, do the following:
      • Make sure that Perform full sync with Cisco Unified Communications Manager is unchecked.
      • Make sure that Hostname for Active Directory Service either matches the value configured on the Directory Service-configured system or is left blank.
  5. Select Save.


Related Topics

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