Hi,
Openser does not generally hold call-state or need call state for
it's operation. It can run in stateless mode or in transaction
stateful mode using the TM module. Therefore, it's very easy to set
up an HA system since you don't have to do any replication of state
between the two proxies.
Bayan Towfiq
On Jun 20, 2007, at 5:58 PM, lariny guy wrote:
Hi,
Can anyone tell me where the openser call state is saved. I have to
replicate this state on two nodes, one standby and the other active
for high availabilty purposes. I have to replicate the OK response
to INVITE and the BYE request. In case of crash, an other server
come up and continue the transaction at OK or INVITE.
For example, In the Asterisk SIP module, the call-state information
is saved in the handle_response() function as part of the INVITE
and BYE processing. The the channel control blocks (struct
ast_channel, struct ast_channel_pvt) and the SIP private control
block (struct sip_pvt).
For the case of openser, i don't know where the state call is saved!
Thanks
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