[Serusers] call transfer INVITE / REFER

Iqbal iqbal at gigo.co.uk
Tue Jul 5 13:25:58 CEST 2005


but in the first instance is a INVITE sent, and then it drops to a 
REFER, cause that is what the grandstream handbook says

Iqbal

Nils Ohlmeier wrote:

>Hi,
>
>take a look at the SDP of the INVITE. Probably it just puts the other side 
>on-hold before sending the REFER.
>But I have no real clue how transfering without REFER should work. (Except a 
>cumbersome solution with Replaces and 3pcc, which I have never.)
>
>  Nils
>
>On Monday 04 July 2005 21:07, Iqbal wrote:
>  
>
>>Hi
>>
>>Should the call transfer use INVITE or REFER as a method, cause I seem,
>>to be getting INVITE, but this then causes problems with authentication.
>>
>>A <-->B  then B transfer to C (all IP phones)
>>
>>This transfer seems fine, but it uses INVITE, no REFER . All phones on
>>same sip domain/server
>>
>>Now when this setup changes
>>
>>pstn <---->B and then B tried to transfer to C, we get nothing, well we
>>get 404 , it check the !location setting, and says ur not allowed.
>>
>>Is the REFER the first message to be sent, or is there a INVITE
>>transaction first,
>>
>>Iqbal
>>
>>
>>_______________________________________________
>>Serusers mailing list
>>serusers at lists.iptel.org
>>http://lists.iptel.org/mailman/listinfo/serusers
>>    
>>
>
>.
>
>  
>




More information about the sr-users mailing list