Subject: Re: Re: [Users] Detecting runaway calls - msg#00403

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Re: Detecting runaway calls

Thanks for the info guys! It sounds like I need to do a little reading up on cseq to determine if this will even work, or find a PSTN gateway provider that supports Session-Timers. - Daryl On 10/27/05, Bogdan-Andrei Iancu <bogdan-/qk4c3+6r1L0ABVSK+4LOw@xxxxxxxxxxxxxxxx> wrote: > by sending re-INVITEs from the middle of the path you will increase the > cseq number differently on each side...so you will need to synchronize > the cseq value when some in-the-dialog requests are passing through your > proxy....and that's quite complicated.... > > regards, > bogdan > > Daryl Sanders wrote: > > >Would it be possible to fake a REINVITE then check the response to > >determine if a call is still in session? Just brainstorming... > > > >- Daryl > > > > > >

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Re: [Serusers] Re: Detecting runaway calls

Hi Greg, that's the fortunate case of having already a B2BUA on the path :). But only for this particular case, I find the usage of a B2BUA a little bit to "heavy".... Session Timer is actually doing a great job ;) regards, bogdan Greg Fausak wrote: The re-INVITEs definitely work. I run some setups with Jasomi inline (a commercial inline b2bua). I configure them to reINVITE, works like a charm. If the reINVITE isn't answered (in either direction) the Jasomi sends BYEs in both directions. I believe other commercial gear works that way. Also, I believe Session-Timers are supported by Cisco gateways, but I don't have experience with those. -g On 10/27/05, Daryl Sanders <daryl.sanders-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx> wrote: Thanks for the info guys! It sounds like I need to do a little reading up on cseq to determine if this will even work, or find a PSTN gateway provider that supports Session-Timers. - Daryl On 10/27/05, Bogdan-Andrei Iancu <bogdan-/qk4c3+6r1L0ABVSK+4LOw@xxxxxxxxxxxxxxxx> wrote: by sending re-INVITEs from the middle of the path you will increase the cseq number differently on each side...so you will need to synchronize the cseq value when some in-the-dialog requests are passing through your proxy....and that's quite complicated.... regards, bogdan Daryl Sanders wrote: Would it be possible to fake a REINVITE then check the response to determine if a call is still in session? Just brainstorming... - Daryl _______________________________________________ Serusers mailing list Serusers-3s/jleuRx9nYtjvyW6yDsg@xxxxxxxxxxxxxxxx http://mail.iptel.org/mailman/listinfo/serusers -- Greg Fausak greg-GqeFjInH3ZZWk0Htik3J/w@xxxxxxxxxxxxxxxx

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Re: Detecting runaway calls

Thanks for the info guys! It sounds like I need to do a little reading up on cseq to determine if this will even work, or find a PSTN gateway provider that supports Session-Timers. - Daryl On 10/27/05, Bogdan-Andrei Iancu <bogdan-/qk4c3+6r1L0ABVSK+4LOw@xxxxxxxxxxxxxxxx> wrote: > by sending re-INVITEs from the middle of the path you will increase the > cseq number differently on each side...so you will need to synchronize > the cseq value when some in-the-dialog requests are passing through your > proxy....and that's quite complicated.... > > regards, > bogdan > > Daryl Sanders wrote: > > >Would it be possible to fake a REINVITE then check the response to > >determine if a call is still in session? Just brainstorming... > > > >- Daryl > > > > > >

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Re: [Serusers] Re: Detecting runaway calls

Hi Greg, that's the fortunate case of having already a B2BUA on the path :). But only for this particular case, I find the usage of a B2BUA a little bit to "heavy".... Session Timer is actually doing a great job ;) regards, bogdan Greg Fausak wrote: The re-INVITEs definitely work. I run some setups with Jasomi inline (a commercial inline b2bua). I configure them to reINVITE, works like a charm. If the reINVITE isn't answered (in either direction) the Jasomi sends BYEs in both directions. I believe other commercial gear works that way. Also, I believe Session-Timers are supported by Cisco gateways, but I don't have experience with those. -g On 10/27/05, Daryl Sanders <daryl.sanders-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx> wrote: Thanks for the info guys! It sounds like I need to do a little reading up on cseq to determine if this will even work, or find a PSTN gateway provider that supports Session-Timers. - Daryl On 10/27/05, Bogdan-Andrei Iancu <bogdan-/qk4c3+6r1L0ABVSK+4LOw@xxxxxxxxxxxxxxxx> wrote: by sending re-INVITEs from the middle of the path you will increase the cseq number differently on each side...so you will need to synchronize the cseq value when some in-the-dialog requests are passing through your proxy....and that's quite complicated.... regards, bogdan Daryl Sanders wrote: Would it be possible to fake a REINVITE then check the response to determine if a call is still in session? Just brainstorming... - Daryl _______________________________________________ Serusers mailing list Serusers-3s/jleuRx9nYtjvyW6yDsg@xxxxxxxxxxxxxxxx http://mail.iptel.org/mailman/listinfo/serusers -- Greg Fausak greg-GqeFjInH3ZZWk0Htik3J/w@xxxxxxxxxxxxxxxx