On 5/9/2017 1:41 AM, Dan Pascu wrote: > >> I called into a SIP number using my cell phone and tried to transfer the >> call to another cell phone. It didn't work. > > I literally addressed this particular example in my answer above and stated > that it won't work as SIP-to-PSTN gateways > do not support call transfer. > >> Then I tried to transfer to another SIP number it didn't work. > > If one leg of the call was still a mobile phone, nothing changed nothing > changed, so yes it would still not 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 >> client? > > It takes two to tango. I laid down the conditions that need to be satisfied > in my answer above. Both endpoints > (clients) need to support call transfer. One endpoint/client (Blink) cannot > magically make the other endpoint > initiate/participate in a call transfer if the other endpoint/client doesn't > support call transfer. > > In all your examples that do not work you mention one endpoint being a mobile > phone, hence one endpoint/client is a > SIP-to-PSTN gateway that doesn't support this. > > Plus if you want to talk specifics as to why your particular attempt failed, > we cannot do that by guessing what is > wrong or inferring the cause from loose descriptions. A SIP trace will show > what is going on.
Too much caffeine? Don't assume everyone else understands this as well as you do. Otherwise, thanks for the answer. MCG _______________________________________________ Blink mailing list [email protected] http://lists.ag-projects.com/mailman/listinfo/blink
