I would try the re-register timer first. 120 is normally used to
specify a default local sip server like the DNS _sip SRV records do.
You should not need the option 120 if you are providing your sip proxy
server in your phone's sip line configuration.
Sent from my iPhone
On Mar 20, 2009, at 4:57 PM, "Gilmour, Scott" <[email protected]>
wrote:
OK Thanks,
Do you think I should try the DHCP Option 120 also
From: Becker, Jesse [mailto:[email protected]]
Sent: Friday, March 20, 2009 4:56 PM
To: Gilmour, Scott
Cc: [email protected]
Subject: RE: [sipx-users] sipx version 3.11
I looks like it is on page 217 of the Administrators guide. It
appears the default is 3600 seconds which should work. You may want
to try something a little bit shorter and see if the phone stay up.
Registration timer value
• This field determines whether the phone sends an expires header in
the REGISTER messages that it sends, and if so, to what value it
sets
it. The expires header in a REGISTER is a suggestion to the
Registrar
server of how long it should be before the phones registration
expires.
To stop its registration from expiring, the phone has to send
another
REGISTER to the Registrar before its current one has expired. The
ex-
pires value which the phone sends is only a suggestion - the
actual val-
ue to be used will be supplied to the phone by the Registrar in
the OK
message that it sends in response to the REGISTER. Normally this
will
be the same as the value that the phone has suggested, but if the
sug-
gested value is outside the Registrars range of acceptable values,
then
it could be different.
• The phone actually adds 60 seconds to the value that is puts into
the
expires header, so that if the REGISTERs that it sends get delayed
be-
cause of a congested network, they will still arrive at the
Registrar be-
fore the registration expires.
• As an example, if 10 seconds is entered as the Registration Timer
val-
ue, the REGISTER messages that the phone sends will have an expires
header of 70 seconds (10 + 60). If 70 seconds is lower than the
Regis-
trars lowest acceptable value, it will ignore the suggested value
and
send back its lower limit value, e.g. 90 seconds. The phone will
sub-
tract 60 seconds from this, and use that as the amount of time to
wait
before sending its next REGISTER, so 30 seconds (90 - 60) later it
will
send out its next REGISTER.
• If the Registration Timer is set to 0, the phone will not put an E
xpires
header into the REGISTER messages that it sends - i.e. it will not
make
any suggestion to the Registrar of how long it would like the
registra-
tion to remain valid.
• Value range table:
Permitted values alphanumeric
Range 0, 10 ... 4320 seconds
Default value 3600 seconds
• Editing by phone: Number Editor page 163.
From: Gilmour, Scott [mailto:[email protected]]
Sent: Friday, March 20, 2009 4:38 PM
To: Becker, Jesse
Subject: RE: [sipx-users] sipx version 3.11
Jesse,
I cannot find the information about the registration timer on my
Siemens Optipoint 410 advance Phones. I will keep on looking for
that info.
Scott
From: Becker, Jesse [mailto:[email protected]]
Sent: Friday, March 20, 2009 4:34 PM
To: Gilmour, Scott
Cc: [email protected]
Subject: RE: [sipx-users] sipx version 3.11
Scott,
You can add customer options to Windows DHCP. I had
to add options 150 for our Cisco phones. Open DHCP under
Administrative Tools. Right click your server and left click Set
Predefined Options. Give the options a name, enter code 120, and
specify what type of value it will contain. Once that is done you
can configure the global scope option or individually for each
scope. Also, what register expiration timer are you using on your
phones?
Jes
From: [email protected] [mailto:[email protected]
] On Behalf Of Gilmour, Scott
Sent: Friday, March 20, 2009 3:55 PM
To: [email protected]
Subject: Re: [sipx-users] sipx version 3.11
Hi,
I just want to add some information to this question. If I am
behind a router could this issue have anything to do with DHCP
Option 120.
I notice that this could be needed in some cases. But my phones
worked when I first brought them up then they lose contact overtime
and I am unable to make calls.
So I was wondering if DHCP Option 120 would help? The only problem
I don’t see this option on my Windows 2003 server R2. How would I c
onfigure this if this is needed?
Thanks
Scott
From: Gilmour, Scott
Sent: Thursday, March 19, 2009 9:28 PM
To: '[email protected]'
Subject: sipx version 3.11
Hi,
I have sipx version 3.11. On a daily bases I need to reset the sipx
server in order for my phones to come up so I can make a call..
I reset the server and the Siemens optipoint 410 phones come up and
go right from saying they are registering to
coming up so I can make a call. I am not sure how long it takes for
the phones to go from being up to trying to register.
I have been waiting for 4.0 so I can upgrade to the latest sipx
server. Has anybody else had this issue. I am wondering if it has
something to do
with dns. Is there anything special I need to do on my dns
server. I have created forward and reverse lookups but this hasn’t
helped my issues.
Thanks
Scott
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