Hi Razvan:
By default Cisco gateway process the call in the way you want using the
"preference" command under the dial-peer configuration. The way it apply
the hunt depends what kind on hunt you wish to apply lets say you have
the following:
dial-peer voice 1 pots
description "incoming calls from PSTN"
max-conn 30
incoming called-number 333...
direct-inward-dial
port <port-id>
dial-peer voice 101 voip
preference 1
description "outgoing calls to SER: First choice"
max-conn <some value>
session protocol sipv2
session target sip-server
dial-peer voice 102 voip
preference 2
description "outgoing calls to SER: Second choice"
max-conn <some value>
session protocol sipv2
session target sip-server
dial-peer hunt <hunt value from 0 to 7>
where
0 - Longest match in phone number, explicit preference, random selection.
1 - Longest match in phone number, explicit preference, least recent use.
2 - Explicit preference, longest match in phone number, random selection.
3 - Explicit preference, longest match in phone number, least recent use.
4 - Least recent use, longest match in phone number, explicit preference.
5 - Least recent use, explicit preference, longest match in phone number.
6 - Random selection.
7 - Least recent use.
Let say you choose hunt 1 or 0. If the first choice have network
troubles automatically the call evaluate the second choice and process
the dial-peer if the communication is available. This only happen when
the call is in setup process Only but not during the call is in progress
or the call have been established.
You don't have to apply timers to do this.
I hope this help
Regards
Alberto Cruz
Steve Blair wrote:
I've never seen dial-peers work this way. If someone has experience
making
them work in this fashion please post to the list. I'd be interested
in the solution.
You can set the sip-ua sip-server parameter to an SRV record. In this
case
the Cisco will try the preferred proxy first and fail over to the next
proxy in the
event the first one does not respond.
Thanks,Steve
Razvan Nemesiu wrote:
Hi all,
I have a Cisco AS 5350 and two SER.On my CISCO I have an incoming
pots dial-peer from PSTN (let's say that it matches 333XXX
numbers).Then I have two outgoing voip dial-peers (both dial-peers
match 333XXX numbers and are the outgoing routes for these
numbers).One of these two outgoing dial-peers is set with a higher
preference than the other in order to be the first choice for
sending the calls.One of the dial-peers has session target one of
the SER and the other has the other SER as session target.So, the
main idea is that I want to do fallback between these two
dial-peers: if the connection with the first SER (that is with
higher preference) is down or there are network problems I want my
CISCO to choose the other route to my second SER (and I want it to
do that after a specified time).The question is how cand I do that ?
And how can I set this timer ?(let's say 10 seconds -> after 10
seconds to choose the other route).What commands do I have to set on
the dial-peers and what commands need to be set in the global
configuration (timers,etc...)?
Thank you very much and I appreciate any help.
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