[SIPForum-discussion] Regarding subscribe request

Nitin Kapoor nitinkapoorr at gmail.com
Thu Jan 14 21:14:15 UTC 2010


It is possible to send the subscription twice, Basically the subscription
can be refreshed by sending another SUBSCRIBE within the dialog before the
expiration time. A server accepting a subscription returns a 200 OK response
also containing an Expires headerfield.The expiration timer can be the same
as the request, or the server may shorten the interval, but it may not
lengthen the interval.

Nitin Kapoor

2010/1/11 sipsipsip sip <sipsipsip.123 at gmail.com>

> Hi All,
>              Happy new year
>            Regarding the question ... when i check the logs
>           Following issues are seen
>           1. Sunbscribe for presence sent twice from the client .. is it ok
> to send twice
>           2. Expires values for register 200ok is 366 sec but register is
> sent at 3 min again from the client
>             this is behavior correct
> Regards,
> vikram chawal
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