Posted on in voice
If you use a new Linksys VoIP phone (for example, the Linksys SPA942), you probably don't have to worry about the change to Daylight Savings Time that began in 2007. By default, your phone has the right information about when Daylight Savings Time begins and ends.
On the other hand …
Posted on in voice
You might run into a situation where you have multiple PRIs or T1s for outbound calling on your Cisco Access Server (Cisco AS5350 or other model). In order to ensure that all outbound calls are using both circuits, you need to configure two outbound dial peers. In order for the …
Posted on in voice
Note: This is part of a discussion regarding the configuration of a Cisco AS5300 for T.37 Store and Forward Faxing.
I haven't touched this series in a while, but I thought it might make sense to add a post that addresses common questions. If you have questions that aren't …
Posted on in voice
During a recent project, I was asked to configure a Linksys SPA942 4-Line IP Telephone to work with Asterisk in an medium-sized office environment. Since this phone was going to be one of many used in a corporate environment, I decided I would need one master configuration, and then individual …
Posted on in voice
This might be a bug with the particular version of Asterisk 1.2 I'm using, but it's pretty darn annoying. Hopefully, it doesn't effect you if you are using the latest version of 1.2 or 1.4.
What I'm trying to do is play some background music while I …
Posted on in voice
Note: This is part of a discussion regarding the configuration of a Cisco AS5300 for T.37 Store and Forward Faxing.
The final piece of the T.37 Store and Forward Fax configuration is the dial peers to handle the incoming fax and the outgoing email. I'll walk you through …
Posted on in voice
Note: This is part of a discussion regarding the configuration of a Cisco AS5300 for T.37 Store and Forward Faxing.
Unfortunately, the Cisco AS5300 does not have the ability to handle incoming fax processing without the help of additional software. You can download the app_faxmail_onramp TCL script from the …
Posted on in voice
Posted on in voice
!
fax receive called-subscriber $d$
fax interface-type fax-mail
mta send server mail.example.com port 25
mta send subject Incoming Fax Received
mta send postmaster postmaster@example.com
mta send mail-from hostname example.com
mta send mail-from username $s$
!
call application voice onramp flash:app_faxmail_onramp.2.0.1.3.tcl
!
dial-peer …Posted on in voice
When calling an AGI from inside your dialplan, you can pass variables to your AGI
via the AGI() application call. The AGI() application takes parameters in the
following format (note the ';' is only necessary in AEL:
AGI(command|ARG1|ARG2|ARGn);
The additional arguments are useful when passing in non-channel …
Posted on in voice
Trying to debug an <acronym title="Asterisk Gateway Interface">AGI</acronym> in Asterisk can be a frustrating experience. The main problem is that STDERR only outputs to the terminal Asterisk was started from. In most cases, this means the terminal is the server console. If your Asterisk server is sitting …
Posted on in voice
When using Asterisk and a remote bank of <acronym title="Primary Rate Interface">PRI</acronym>s (or any other form of <acronym title="Public Switched Telephone Network">PSTN</acronym> connectivity for that matter), you may encounter an issue known as hairpinning. Hairpinning describes what happens when a call coming from …
