Stonevoice Voice Mail

Cisco CME can integrate with various non-Cisco voice mail systems using H.323. One of the H.323 voice systems supported by Cisco CME is the Stonevoice Switch Answering Machine (SSAM), a unified messaging system designed to provide access to and control over software-based voice mail services.

SSAM is a Windows 2000-based application that runs on an external PC. All traffic between Cisco CME and SSAM uses H.323. Figure 11-4 shows how the Stonevoice SSAM application integrates with Cisco CME.

Figure 11-4. Cisco CME with Stonevoice SSAM Voice Mail

When integrated with CME, SSAM supports the following:

• Direct access to voice mail
• Call forward no answer (CFNA) or call forward busy (CFB) to a personal greeting
• MWI

For more information on the SSAM system, go to http://www.stonevoice.com/.

The following sections provide more details on integrating a Stonevoice system with Cisco CME, including

• Configuring Cisco CME for Stonevoice
• MWI from Stonevoice

Configuring Cisco CME for Stonevoice

Communication between Cisco CME and SSAM is via H.323, so you have to configure an H.323 dial peer to direct calls into the SSAM system. You must configure a voice mail pilot number (for example, 9999) on SSAM for message retrieval and an individual voice mail number for each extension (ephone-dn). Because the original called number (the IP phone extension) is not preserved when the call is forwarded to SSAM via H.323, you must embed this information in the called number (the call forward number) delivered to SSAM.

Example 11-6 shows a sample Cisco CME configuration defining a voice mail pilot number of 9999 (used when you press the messages button on your IP phone), voice mail number 9001 for extension 1001, and 9002 for extension 1002.

Example 11-6. Configuring Cisco CME for SSAM

router#show running-config
dial-peer voice 100 voip
 destination-pattern 9... 
 session target ipv4:172.19.153.120
 dtmf-relay h245-alphanumeric
 codec g711ulaw
 no vad
!
telephony-service
 voicemail 9999 
!
ephone-dn 1
 number 1001
 call-forward busy 9001 
 call-forward noan 9001 timeout 10 
!
ephone-dn 2
 number 1002
 call-forward busy 9002 
 call-forward noan 9002 timeout 10 

The voice dial peer command destination-pattern 9... ensures that all calls to 9999, 9001, and 9002 are directed to SSAM via H.323. The IP address 172.19.153.120 in this example belongs to the SSAM system.

The voicemail 9999 command under telephony service is the voice mail pilot number used when you press the messages button on your IP phone. This number must match the "Voicemail number" parameter on the SSAM Modify IP Telephony System page.

Individual voice mail forwarding numbers are defined for each extension. These are used in the call-forward busy and call-forward noan fields of the ephone-dn Cisco CME configuration. These numbers must be configured on the SSAM system for each individual user. For example, for the person on ephone-dn 1, you configure his or her extension (1001) in the "First extension number" field, and configure 9001 in the "Voicemail number" field of the SSAM Account Management page for this user.

MWI

MWI is controlled by the SSAM system outdialing with H.323 to a Cisco CME MWI DN. The extension for which the MWI must be turned on or off is embedded in the dialed number. The Cisco CME configuration for this is shown in Example 11-7.

Example 11-7. Configuring MWI for SSAM

router#show running-config
ephone-dn 11
 number 8000*....*1 secondary 8000*....*2 
 mwi on-off
 no huntstop
!
ephone-dn 12
 number 8000*....*1 secondary 8000*....*2 
 mwi on-off
 preference 1

You should configure as many of these MWI ephone-dns as you have "ports" on the SSAM system so that the maximum number of simultaneous calls can be handled correctly. Use the Cisco CME preference and no huntstop command designations to make sure the Cisco CME system hunts across any available MWI ephone-dns.

When the SSAM system makes an outgoing call to Cisco CME, the MWI information is embedded in the called party's telephone numberfor example, 8000*1001*1 or 8000*1001*2. The 8000 is the MWI DN's number, and the asterisks are used as delimiters. The extension for which MWI should be turned on or off is contained between the asterisks, and the final digit in the string specifies whether MWI is on (1) or off (2).

The notation 8000*....*1 in the ephone-dn definition accepts any extension number and represents the extension digits that Cisco CME extracts to determine for which IP phone to turn MWI on or off. The MWI on (ending in digit 1) and MWI off (ending in digit 2) strings are given on the same ephone-dn as the primary and secondary extensions on that ephone-dn, as shown in Example 11-7.

Analog Voice Mail