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How to Assign Unity Connection Ports?

Hi,

Is there a document/link that I can reference which shows how ports on Unity Connection should be assigned as a general rule.  For example, if I have a total of 200 vm ports available on the connection cluster, how many should be dedicated to  answering calls, mwi, and  message notification. 

And which ports can be shared between these roles?  For instance, can answer ports also be used for mwi, and messaging notification?

Thanks

James

Everyone's tags (4)
1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Red

How to Assign Unity Connection Ports?

Hi James,

The "General" rule for Port assignment that people have used over the years

has been the 75/25 breakdown. Where 75% of the available Ports are dedicated

for Answering-only and the other 25% are set for MWI,TRAP & Dialout

This is by no means a hard & fast rule, but rather a recommendation. In your design

you may prefer an 80/20 or some other distribution.

Determining How Many Voice Messaging Ports to Install

The number of voice messaging ports to install depends on numerous factors, including:

The number of calls Cisco Unity Connection will answer when call traffic is at its peak.

The expected length of each message that callers will record and that users will listen to.

The number of users.

The number of ports that will be set to dial out only.

The number of calls made for message notification.

The number of MWIs that will be activated when call traffic is at its peak.

The  number of TRAP connections needed when call traffic is at its peak.  (TRAP connections are used by Cisco Unity Connection web applications to  play back and record over the phone.)

The number of calls that will use the automated attendant and call handlers when call traffic is at its peak.

Whether a Cisco Unity Connection cluster is configured. For considerations, see the "Considerations for a Cisco Unity Connection Cluster" section.

It is best to install only the number of voice messaging ports that are  needed so that system resources are not allocated to unused ports.

Determining How Many Voice Messaging Ports Will Answer Calls

The calls that the voice messaging ports answer can be incoming calls  from unidentified callers or from users. Typically, the voice messaging  ports that answer calls are the busiest.

You can set voice messaging ports to both answer calls and to dial out  (for example, to send message notifications). However, when the voice  messaging ports perform more than one function and are very active (for  example, answering many calls), the other functions may be delayed until  the voice messaging port is free (for example, message notifications  cannot be sent until there are fewer calls to answer). For best  performance, dedicate certain voice messaging ports for only answering  incoming calls, and dedicate other ports for only dialing out.  Separating these port functions eliminates the possibility of a  collision, in which an incoming call arrives on a port at the same time  that Cisco Unity Connection takes the port off-hook to dial out.

If your system is configured for a Cisco Unity Connection cluster, see the "Considerations for a Cisco Unity Connection Cluster" section.

Determining How Many Voice Messaging Ports Will Only Dial Out, and Not Answer Calls

Ports that will only dial out and will not answer calls can do one or more of the following:

Notify users by phone, pager, or email of messages that have arrived.

Turn MWIs on and off for user extensions.

Make  a TRAP connection so that users can use the phone as a recording and  playback device in Cisco Unity Connection web applications.

Typically, these voice messaging ports are the least busy ports.

If your system is configured for a Cisco Unity Connection cluster, see the "Considerations for a Cisco Unity Connection Cluster" section.


Caution In  programming the phone system, do not send calls to voice messaging  ports in Cisco Unity Connection that cannot answer calls (voice  messaging ports that are not set to Answer Calls). For example, if a  voice messaging port is set only to Send MWI Requests, do not send calls  to it.

From;

http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/integration/guide/cucm_sccp/cucintcucmskinny020.html

Cheers!

Rob

"Show a little faith, there's magic in the night" - Springsteen

2 REPLIES
Hall of Fame Super Red

How to Assign Unity Connection Ports?

Hi James,

The "General" rule for Port assignment that people have used over the years

has been the 75/25 breakdown. Where 75% of the available Ports are dedicated

for Answering-only and the other 25% are set for MWI,TRAP & Dialout

This is by no means a hard & fast rule, but rather a recommendation. In your design

you may prefer an 80/20 or some other distribution.

Determining How Many Voice Messaging Ports to Install

The number of voice messaging ports to install depends on numerous factors, including:

The number of calls Cisco Unity Connection will answer when call traffic is at its peak.

The expected length of each message that callers will record and that users will listen to.

The number of users.

The number of ports that will be set to dial out only.

The number of calls made for message notification.

The number of MWIs that will be activated when call traffic is at its peak.

The  number of TRAP connections needed when call traffic is at its peak.  (TRAP connections are used by Cisco Unity Connection web applications to  play back and record over the phone.)

The number of calls that will use the automated attendant and call handlers when call traffic is at its peak.

Whether a Cisco Unity Connection cluster is configured. For considerations, see the "Considerations for a Cisco Unity Connection Cluster" section.

It is best to install only the number of voice messaging ports that are  needed so that system resources are not allocated to unused ports.

Determining How Many Voice Messaging Ports Will Answer Calls

The calls that the voice messaging ports answer can be incoming calls  from unidentified callers or from users. Typically, the voice messaging  ports that answer calls are the busiest.

You can set voice messaging ports to both answer calls and to dial out  (for example, to send message notifications). However, when the voice  messaging ports perform more than one function and are very active (for  example, answering many calls), the other functions may be delayed until  the voice messaging port is free (for example, message notifications  cannot be sent until there are fewer calls to answer). For best  performance, dedicate certain voice messaging ports for only answering  incoming calls, and dedicate other ports for only dialing out.  Separating these port functions eliminates the possibility of a  collision, in which an incoming call arrives on a port at the same time  that Cisco Unity Connection takes the port off-hook to dial out.

If your system is configured for a Cisco Unity Connection cluster, see the "Considerations for a Cisco Unity Connection Cluster" section.

Determining How Many Voice Messaging Ports Will Only Dial Out, and Not Answer Calls

Ports that will only dial out and will not answer calls can do one or more of the following:

Notify users by phone, pager, or email of messages that have arrived.

Turn MWIs on and off for user extensions.

Make  a TRAP connection so that users can use the phone as a recording and  playback device in Cisco Unity Connection web applications.

Typically, these voice messaging ports are the least busy ports.

If your system is configured for a Cisco Unity Connection cluster, see the "Considerations for a Cisco Unity Connection Cluster" section.


Caution In  programming the phone system, do not send calls to voice messaging  ports in Cisco Unity Connection that cannot answer calls (voice  messaging ports that are not set to Answer Calls). For example, if a  voice messaging port is set only to Send MWI Requests, do not send calls  to it.

From;

http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/integration/guide/cucm_sccp/cucintcucmskinny020.html

Cheers!

Rob

"Show a little faith, there's magic in the night" - Springsteen

New Member

How to Assign Unity Connection Ports?

Thanks Rob.  Exactly what I looking for.

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