VG248 disconnect calls

[jamesleewright]

Hello,

I recently upgraded the software on a VG248 to 1.3(2)ES2 and now calls on a analog push button elevator phone wont work. It calls fine but when other end user hangs up does not disconnect and you hear a fast busy. It disconnects with previous software so I failed back.

Does anyone know what new setting in telephony advanced will disconnect the call in this scenrio? thanks

[Bruno Rangel]

Hi James

You can try Choosing a Call Supervision Method, chose between several different call supervision methods:

• None— no call supervision

•Drop loop current — indicates to an analog device that the remote caller has hung up. For example, if a user calls someone with an answering machine, leaves a message, and hangs up, disconnect supervision is the electrical state that briefly drops the loop current and indicates to the answering machine that the caller has hung up.

•Reverse polarity — useful for billing systems. When a call connects, polarity reverses, indicating that charges begin to accrue. When the call goes down, polarity reverses back to normal and charges stop.

Follow these steps to choose a call supervision method on a per port basis:

Step 1 From the main menu, choose Configure.

Step 2 Choose Telephony.

Step 3 Choose Port specific parameters.

Step 4 Use the arrow keys to select the port to configure and press Enter.

Step 5 Choose Call supervision method.

Step 6 Choose one of the following options:

•none

•drop loop current

•reverse polarity

Please rate this post

[jamesleewright]

thanks I tried that, using a spare VG, but it does not change anything when the other phone hangs up, fast busy.,

the working vg's port is set to call supervison method none

thanks

[Bruno Rangel]

You mean no one these Call Supervision Method works?

The other works VG248 have the same version?

[jamesleewright]

that is correct no matter what i chose for call supervision method I get a continuous fast busy after the otherline disconnects

thanks!

[Rob Huffman]

Hi James,

I would look at the Advanced setting referenced below;

CSCse77040            Bug Details

PLAR behavior inconsistent with VG248 ph when called party ends the call

Symptom: PLAR behavior incocnsistent with VG248 phone when called party ends the call before calling party Conditions: Ends the call first in called party and then onhook the VG248 phone. Workaround: None. Further problem Description:Utilize the "Busy out off hook ports" replacement paramater, "reject softkey". It allows for control of port busy signaling by using a soft key.To use this feature, please make sure that the Call Manager is running either the latest 4.1(3) service pack or 4.2(1)sr1 or a later 4.2 version.To activate "Reject Softkey mode, use the console menu to set "Port busy signaling" to reject soft key. Configure->Telephony->Advanced settings->Port busy signaling = reject soft key

Status Terminated              Severity 3 - moderate Last Modified Any Time         Product Cisco VG Series Gateways          Technology 1st Found-In 1.3(1)ES8.2

Here's the Readme for your new vesrion;

Cisco VG248 1.3(2)ES3 Release Notes

This engineering special image resolves one issue CSCso07174

Problem Description

With VG248 version 1.3(2), when port busy signaling is set to reject softkey and if a terminating 
analog phone is hang up first, then incoming calls to this analog port will be rejected. 

Workaround/Solution

An upgrade to engineering special build 1.3(2)ES3 is required.

DDTS Information

CSCso07174 VG248 will not process call inbound if Port busy signaling invoked

Cheers!

Rob

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