Hi there. Hopefully an easy answ 2

[DirectelTech]

Hi there.

Hopefully an easy answer here.

Using SSA I notice that some calls have a preserved state, I cannot find this in the help file, any ideas why it would say this rather than Connected?

Thanks in advance

 

[kyle555]

No idea, but maybe it's indicative of a network problem and that it dropped and was re-established?

 

[Pepp77]

I think it is to do with this (although never seen it myself)

Media Connection Preservation
Media Connection Preservation maintains calls that experience end-to-end signalling loss or refresh failures but that still have an active media path.

IP Phones:

The following Avaya H.323 phones attempt to maintain calls when the signal from the host IP Office is lost. The phones must be running the firmware release delivered with IP Office release 9.1 or higher.

9608

9611

9621

9641

When preserving a call, the phone does not attempt to reregister with their call server or attempt to failover to a standby call server, until the call has been terminated. Softkey call actions and feature menus do not work during this time due to the loss of signalling path. The phone display is not updated and the only permitted action is to terminate the call.

IP Office:

When enabled for a particular IP endpoint type that supports Media Connection Preservation, the call is put into a Preserved state and a Preservation Interval timer is started for that call at the point the signalling loss is detected. The maximum duration of a preserved call on IP Office is two hours. Once put into the Preserved state, a call can only transition to the Terminated state. Call restoration is not supported.

Only the following call types are preserved:

Connected active calls

Two party calls where the other end is a phone, trunk, or voicemail

Conference calls

Calls on hold and calls to hunt groups are not preserved.

Phone Display:

When a call is in a preserved state but the phone's local signalling connection with its host IP Office is still present, the phone call state display is prefixed with a warning icon. Hold, transfer, and conference actions are not available.

System Configuration
When enabled on System | Telephony | Telephony, Media Connection Preservation is applied at a system level to SCN trunks and Avaya H.323 phones that support connection preservation. All systems in a Small Community Network (SCN) must be enabled for end to end connection preservation to be supported.

When enabled on Line | SIP Line | SIP Advanced, Media Connection Preservation is applied to the SIP trunk. The value of connection preservation on public SIP trunks is limited. Media Connection Preservation on public SIP trunks is not supported until tested with a specific service provider. Media Connection Preservation is disabled by default for SIP trunks.

When enabled on Line | SM Line | Session Manager, Media Connection Preservation is applied to Enterprise Branch deployments. Media Connection Preservation preserves only the media and not the call signaling on the SM Line. Media Connection Preservation


| ACSS SME |

 

[DirectelTech]

Now that explains the (!) I keep seeing on the handsets

Thanks Kyle and Pepp

 

[kyle555]

Yeah, it sounds like you have bigger problems to worry about...