[Asterisk-Users] attended transfer issue

[Jerry Jones]

Keep in mind that with a SIP phone you are not communicating directly  
with asterisk but with the phone which acts on your behalf with  
asterisk. On traditional systems if you performed a hook flash to  
transfer, you were definately signalling directly to the PBX. Now  
when you push a button, hard or soft, on a SIP phone you are telling  
the phone to perform as series of actions to accomplish a goal. It is  
very much up to the phone software on exactly how the set behaves.
As stated previously, yes there should be a standard, but afaik there  
are no standards bodies specifying the ui for voip devices.


On Apr 14, 2006, at 2:16 PM, John Novack wrote:

>
>
> Jerry Jones wrote:
>
>> Yes it should all behave the way we are used to. However SIP IS   
>> different. The exact behavior will be dependant upon the  
>> individual  hard phone.
>>
> Isn't that true only if it has a preprogrammed transfer key?
> an Asterisk feature code should work as discussed.
> There SHOULD be a way to make SIP phones work the same.
> ( easy to say, perhaps not so easy to do )
>
> John Novack
>
>> This of course is if using SIP which we do not know yet...
>>
>> On Apr 14, 2006, at 1:43 PM, John Novack wrote:
>>
>>>
>>>
>>> Michael Collins wrote:
>>>
>>>>> A few months ago I needed some help for the following issue:
>>>>>
>>>>> .) a call comes in
>>>>> .) Person A takes the call and does an attended transfer to  
>>>>> Person B
>>>>> .) Person A hangs up the phone without waiting for Person B   
>>>>> taking the call
>>>>> .) the caller get lost at this point !!
>>>>>
>>>>> At this point the attended transfer should go into a blind  
>>>>> transfer.
>>>>>
>>>> The phone of Person B should still be ringing and the caller   
>>>> shouldnt get lost.
>>>>
>>>> I think this is the most usual behaviour of a call transfer  
>>>> also  on the cheapest systems on the market.
>>>>
>>>>
>>>>
>>>> Could you remind us of what kinds of phones you are using, and   
>>>> whether you're using SIP, Zap or something else?
>>>>
>>>> Thanks!
>>>>
>>>> -MC
>>>>
>>> I think the point of this post and other related ones is the  
>>> fact  that there are attended and blind transfers, initiated by  
>>> different  actions, where phone systems for at least the last 20  
>>> years have  one action, or transfer.
>>> The person initiating the transfer starts the procedure, and if  
>>> the  destination extension answers, either through the facilities  
>>> of  handsfree intercom or picking up the phone, the initiator and  
>>> the  receiver can confer BEFORE the transfer is complete.
>>> If, on the other hand the initiator either chooses to hang up  
>>> after  starting the transfer, the transfer is then complete, and  
>>> the  destination extension rings until answered or overflows into  
>>> voice  mail.
>>> In NO case should the call get lost. Attended and blind transfer   
>>> SHOULD start with the same action and be considered as ONE function
>>> Irrelevant what phones are being used.
>>>
>>> JMO
>>>
>>> John Novack
>>>
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