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meadows_sub at yahoo.com
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 Posted: Tue Feb 04, 2014 2:03 pm Post subject: [asterisk-users] Connect to remote GW |
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| If SIP channel driver needs to connect to a remote GW over a dedicated SIP trunk BUT the remote GW has a 'standby' in case of failure, how can the sip configuration file be configured for the remote GW when there are actually two IP addresses. If the main remote GW fails control automatically switches to the standby GW, so how could the SIP configuration file hande this switch and support both host IP addresses. There is no DNS so straight IP addressing is used. |
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mitul at enterux.in
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| Posted: Tue Feb 04, 2014 2:10 pm Post subject: [asterisk-users] Connect to remote GW |
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Make two trunk entries in sip.conf for both IPs and do the failover routing in extensions.conf
Mitul
On Wednesday, February 5, 2014, Meadows Hoa <meadows_sub@yahoo.com (meadows_sub@yahoo.com)> wrote:
| Quote: | If SIP channel driver needs to connect to a remote GW over a dedicated SIP trunk BUT the remote GW has a 'standby' in case of failure, how can the sip configuration file be configured for the remote GW when there are actually two IP addresses. If the main remote GW fails control automatically switches to the standby GW, so how could the SIP configuration file hande this switch and support both host IP addresses. There is no DNS so straight IP addressing is used.
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Regards,
Mitul Limbani,
Chief Architech & Founder,
Enterux Solutions Pvt. Ltd.
110 Reena Complex, Opp. Nathani Steel,
Vidyavihar (W), Mumbai - 400 086. India
http://www.enterux.com/
http://www.entvoice.com/
email: mitul@enterux.in (mitul@enterux.in)
DID: +91-22-71967196
Cell: +91-9820332422 |
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mailinglist+asterisk a...
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| Posted: Wed Feb 05, 2014 4:09 am Post subject: [asterisk-users] Connect to remote GW |
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On 04/02/14 18:56, Meadows Hoa wrote:
| Quote: | If SIP channel driver needs to connect to a remote GW over a dedicated
SIP trunk BUT the remote GW has a 'standby' in case of failure, how
can the sip configuration file be configured for the remote GW when
there are actually two IP addresses. If the main remote GW fails
control automatically switches to the standby GW, so how could the SIP
configuration file hande this switch and support both host IP
addresses. There is no DNS so straight IP addressing is used.
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Doing it in the dialplan is a bit of a bodge but perfectly possible.
Just make sure you have qualify=yes so if a GW does down asterisk spots
it and the Dial() command returns quickly. You might also wish to reduce
the check interval down from the default of every minute.
The proper way is to make use of DVS SRV however Asterisk doesnt support
it properly (doesnt fail over). Not sure if that has been fixed in
version 12.
If there is just one active GW and one or more backups then the its
normally fairly easy to create a virtual IP address on the GW so if one
fails then another takes over. Only works if they are on the same
network though.
Alternatively use something like opensips as a front end. Thats what we
do and it load balances between multiple asterisk server and detects if
one fails. You can make use of keepalived to provide a virtual IP
address which moves between boxes if one dies or the opensips process
stops running.
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