408 indicates transaction timeout. You have sent request to next hop and it has not responded back. If the gateway has not responded at all (Including 100 trying), 408 is appropriate. 480 is more of application usage meaning that the user is not available and would be appropriate if the gateway has at least send one provisional response i.e. 100, 180, 183...
On Wed, Aug 13, 2008 at 8:06 PM, Somesh S. Shanbhag <[EMAIL PROTECTED]> wrote: > I think both are fine because both would tear-down the transaction and would > mean almost the same thing. > > But still 408 would have been more appropriate as its from Gateway, rather > than 480 which > is more likely to be client driven. > > And also in 480, we can get Re-Try after header, the time after which I can > attempt > calling again! > > Its more implementation dependent. > > Cheers! > Somesh > > -----Original Message----- > From: [EMAIL PROTECTED] on behalf of Iñaki Baz Castillo > Sent: Wed 8/13/2008 7:39 PM > To: [email protected] > Subject: [Sip-implementors] Is preferible 408 instead of 480 when > calleedoesn't answer? > > Hi, when calling to two SIP/PSTN gateways, if the callee doesn't reply in XX > seconds then the gateway sends me a "480 User Unavailable". > > Well, I think is much better using "408 Timeout", isn't it? > > Thanks. > > -- > Iñaki Baz Castillo > [EMAIL PROTECTED] > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > EMAIL DISCLAIMER : This email and any files transmitted with it are > confidential and intended solely for the use of the individual or entity to > whom they are addressed. Any unauthorised distribution or copying is strictly > prohibited. If you receive this transmission in error, please notify the > sender by reply email and then destroy the message. Opinions, conclusions and > other information in this message that do not relate to official business of > Mascon shall be understood to be neither given nor endorsed by Mascon. Any > information contained in this email, when addressed to Mascon clients is > subject to the terms and conditions in governing client contract. > > Whilst Mascon takes steps to prevent the transmission of viruses via e-mail, > we can not guarantee that any email or attachment is free from computer > viruses and you are strongly advised to undertake your own anti-virus > precautions. Mascon grants no warranties regarding performance, use or > quality of any e-mail or attachment and undertakes no liability for loss or > damage, howsoever caused. > > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
