2010/7/21 edson.gomes.leme <edson.gomes.l...@uol.com.br>:
> Hi Pekka Pessi;
>
> a) Does the Sofia-SIP soa module support “Delayed Offer” ?

Yes..

> b) How can this call scenario be implemented with the soa module?
>
>         SOFIA-SIP (soa)
>              A (UAC)                         B (UAS)
>                 |                               |
>                 |<----------  INVITE  ----------|
>                 |                               |
>                 |-------  100 Trying  --------->|
>                 |-------  180 Ringing  -------->|
>                 |                               |
>                 |-------  200 (offer)  -------->|
>                 |<------  ACK (answer)  --------|
>                 |                               |

You need nothing special (but the usual remote sdp tags in
nua_i_invite are missing).

> c) How can this call scenario be implemented with the soa module?
>
>        SOFIA-SIP (soa)
>             A (UAC)                         B (UAS)
>                |                               |
>                |----------  INVITE  ---------->|
>                |                               |
>                |<-------  100 Trying  ---------|
>                |<-------  180 Ringing  --------|
>                |                               |
>                |<-------  200 (offer)  --------|
>                |------  ACK (answer)  -------->|
>                |                               |

Currently, this requires a kludge, you have to include an empty
payload (I think SIPTAG_PAYLOAD_STR("") is ok) in nua_invite().

--Pekka

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