Rainy day call flows: Incoming call transferred to Avaya Aura® Messaging or Avaya Modular Messaging

Last Updated : Nov 02, 2015 |
When configuring a branch to use Avaya Aura® Messaging or Avaya Modular Messaging, an internal number is set for calls to the Centralized voice mail system to be automatically routed through the SM Line. You can also configure an additional PSTN number to ensure that calls to Avaya Aura® Messaging or Avaya Modular Messaging are correctly routed to the PSTN trunk when the SM Line is not available. For configuration procedures, see Deploying Avaya IP Office™ Platform as an Enterprise Branch with Avaya Aura® Session Manager.
Prolog information

Rainy day media flow scenario

The following image shows the media flow for an unanswered call in Rainy day. In this media flow scenario, the unanswered call is transferred to a Centralized Avaya Aura® Messaging or Avaya Modular Messaging voice mail system.
Important:
This type of call flow scenario in Rainy day is not supported on CS 1000 Call Pilot voice mail systems.
Figure: Incoming call to IP Office phone transferred to Avaya Aura® Messaging voice mail system
In Rainy day, all station types (SIP, H.323, digital, and analog) are registered to IP Office. IP Office users and Centralized users leave and retrieve voice mails over the PSTN. In Rainy day conditions, DTMF digits indicate specific mailboxes, and the Message Waiting Indicator on the called user’s phone does not light up.
The following table describes the call signalling flow in more detail.
Call signaling flow description for incoming calls transferred to Avaya Aura® Messaging in Rainy day
Call scenario
Description of call signalling flow
  1. User A dials user B. In this example, the call is local (from station to station), but the media flow would be the same for an inbound trunk call.
  2. User at station B does not answer the call and the process of transferring the call to voice mail begins.
  3. IP Office determines that the SM Line is not available and routes the call over the PSTN.
  4. The call is routed from Communication Manager to Session Manager.
  5. The call is routed from Session Manager to the Avaya Aura® Messaging or Avaya Modular Messaging voice mail system.
  1. Call from user A is routed to user B through the IP Office.
  2. IP Office determines whether voice mail is enabled.
  3. The PSTN voice mail number requires a corresponding Short Code or ARS entry for the call to be routed to the correct line in Rainy day. The PSTN number must be a valid DID number from the branch to the core voice mail system.
  4. Communication Manager processes the incoming voice mail PSTN number and then transfers the number to Session Manager.
  5. IP Office sends DTMF tones to Session Manager to indicate which mail box the call should be transferred to Session Manager then forwards the call to the Centralized Avaya Aura® Messaging or Avaya Modular Messaging voice mail system.
    Note:
    IP Office must be administered to send voice mail instructions as DTMF tones. In the IP Office Manager Voicemail tab, you must select Enable voice mail Instructions Using DTMF. If this capability is disabled, DTMF digits are not sent automatically. Instead, the caller must manually dial the mail box number.