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Call transfer problem when using function keys


John
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Hi,

 

we have the following problem with the programmable keys (DSS Keys) in Yealink T26 and T28 phones every time we try to make an atended transfer call:

 

Senario A

 

1. User A calls User B,

 

2. To make and attended transfer to user C, user B has to press the transfer key and dial his extension number. User B and user C can talk to each other and user B can complete the call transfer by pressing the transfer key again.

 

Senario B

 

When user B presses the transfer key and a pre-programmed function key (instead of dialing the extension number of the C user), he cannot talk with user C. If user B press the transfer key again, the transfer will be completed succesfully but it's like a blind transfer that way.

 

 

A customer tested the attended call transfer with another IP PBX and it worked without problems both by dialing the extension number and by pressing the function key.

 

 

PBX Version: Version: 3.4.0.3201 Hosted Pro Plus

Operating System: CentOS Linux.

We have upgraded the firmware in all phones to the latest version.

 

 

Do you know how we can solve that problem?

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Hi,

 

we have the following problem with the programmable keys (DSS Keys) in Yealink T26 and T28 phones every time we try to make an atended transfer call:

 

Senario A

 

1. User A calls User B,

 

2. To make and attended transfer to user C, user B has to press the transfer key and dial his extension number. User B and user C can talk to each other and user B can complete the call transfer by pressing the transfer key again.

 

Senario B

 

When user B presses the transfer key and a pre-programmed function key (instead of dialing the extension number of the C user), he cannot talk with user C. If user B press the transfer key again, the transfer will be completed succesfully but it's like a blind transfer that way.

 

 

A customer tested the attended call transfer with another IP PBX and it worked without problems both by dialing the extension number and by pressing the function key.

 

 

PBX Version: Version: 3.4.0.3201 Hosted Pro Plus

Operating System: CentOS Linux.

We have upgraded the firmware in all phones to the latest version.

 

 

Do you know how we can solve that problem?

 

Is it possible to send us the SIP log from the PBX for both scenario. Here is the link on how to get the SIP trace - http://www.pbxnsipsupport.com/index.php?_m...;kbarticleid=58

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