[Blink] New Blink Qt 3.0.0 version for MS Windows

Mediacast Guy mediacastguy at gmail.com
Mon May 8 23:17:46 CEST 2017

On 5/8/2017 2:50 AM, Dan Pascu wrote:
> On 05/08/17 03:32, Mediacast Guy wrote:
>> On 3/11/2017 10:19 AM, Dan Pascu wrote:
>>> On 10 Mar 2017, at 23:03, Mediacast Guy wrote:
>>>> On 3/10/2017 8:23 AM, Dan Pascu wrote:
>>>>> On 9 Mar 2017, at 14:58, Mediacast Guy wrote:
>>>>>> On 1/11/2017 11:23 AM, Adrian Georgescu wrote:
>>>>>>> This Windows version features SIP call transfer, migration to latest Google contacts API and several bug fixes.
>>>>>>> Graphical user interface has been migrated to Qt5.
>>>>>>> The automatic updater should kick in. To manually upgrade your Blink version go to:
>>>>>>> http://icanblink.com
>>>>>> I'm missing something. Where is call transfer in the Windows version? I have version 3.0.0 installed, and the update
>>>>>> checker says it's the latest version.
>>>>> http://icanblink.com/help/manual-qt/audio-calls-linux/#call-transfer
>>>> Thanks for pointing that out. I'm sorry I missed it. It works great. What's strange is my VOIP provider (VOIPo) said
>>>> they don't have call transfer on their residential accounts yet it clearly works.
>>> Call transfer is a function of the client not of the provider.
>> I just tried to do a transfer with Blink and my VOIPo number, the same one that worked in the exercise above. When I
>> initiated the transfer, Blink said "trying" the transfer but never connected. If I dial the number directly, it works.
>> Am I doing something wrong?
> The SIP service provider must support forwarding in-dialog REFER messages, as well as allowing the Referred-By and
> Refer-To headers in INVITE requests for call transfer to work.
> If you see Blink displaying 'trying' and not moving forward with the call transfer is most likely that the REFER
> message was not delivered to the destination or the destination doesn't know how to handle it, but a SIP trace is
> needed to confirm what actually happened.
> If this call was with a PSTN number and you attempted to transfer that, it's very likely to fail as no SIP-to-PSTN
> gateway I know of implements call transfer functionality.
> You need both SIP endpoints to support call transfer and a SIP provider that does forward in-dialog messages correctly
> for this to work. 

I called into a SIP number using my cell phone and tried to transfer the call to another cell phone. It didn't work.
Then I tried to transfer to another SIP number it didn't work. What I don't understand is why it worked before. It's
confusing because I've been told that "call transfer is a function of the client not of the provider." Isn't Blink the

Thanks for your help!

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