[Asterisk-Users] This newbie gives up for now - sadly

[Olle E. Johansson]

Robert Hajime Lanning wrote:
> John,
>    Jared is right.  I have a co-worker who has coughed up the money for the
> Cisco 7960 SIP phones.  These have a soft button for "Supervised Transfer".
> And, it works.
> 
>    I only have the Grandstream BT101 phones, and their "Transfer" button only
> implements "Blind Transfer".
> 
>    So, to get it to work, you will need to upgrade to non-budget phones.  Not
> ideal, but Asterisk does support the feature, just Grandstream does not.
> 
Out of curiosity: Could you explain the difference from a SIP protocol level?

/O