[VoIP] Asterisk-SIP Trunk

Mark Rudholm mark at rudholm.com
Sun Dec 23 10:11:51 CST 2007


Running a desktop, like anything, requires system resources, but there is no
particular incompatibility with running a "desktop" and *.  Given enough 
memory
and cpu, expect no problems.  In a commercial setting where * is serving as
a corporate PBX, I'd avoid running anything else on the same system, but
for home/hobbyist use, I wouldn't worry about it.  I run a dual-display 
"destktop"
(XFCE4), various daemons (NFS server, CIFS server, a music server, CUPS),
as well as use the system as a movie and music player, and * works fine.
It's a 2GHz AMD-64, but it never even breaks a sweat.

Also keep in mind that a dependency on a shared object is not the same thing
as a dependency on an executable or daemon.  Shared objects and modular
object code are a very good thing.

windmill wrote:
> My peers tell me that running a desktop adversely affects the operation 
> of Asterisk and that is why I don't run one. Ideally I would like to 
> have only those applications necessary to run Asterisk and take care of 
> housekeeping but so far it seems to me that there is no definitive list, 
> everything appears to depend upon something else. I have yet to make up 
> my mind about whether so much dependency is a good thing or not, at 
> present based upon my experiences of the last year I am leaning toward 
> the latter view. I can't help thinking that programmers have become very 
> lazy over the years relying on endless libraries of basic functions. It 
> is more than 20 years since I did any programming so I might be talking 
> through my hat as many developments have passed me by since Z80 assembly 
> language and Microsoft Basic Compiler. Perhaps I need to start reading 
> all those tomes on the computer shelf in my library of books.
>
> Brian
>
> Lee Spenadel wrote:
>   
>> I don't know cups.  I run the gnome desktop and I "X" windows to it and run
>> my rpc applications from there.  You can also download the source and
>> compile them manually from a command prompt.  I'm still what I consider a
>> novice in Linux but I seem to be able to manage the day-to-day tasks without
>> much trouble.
>>
>> Lee
>>
>> -----Original Message-----
>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On Behalf Of
>> windmill
>> Sent: Saturday, December 22, 2007 4:20 PM
>> To: Voice Over IP Tandem for Analog Switches
>> Subject: Re: [VoIP] Asterisk-SIP Trunk
>>
>> Lee,
>>
>> I don't have a Linux Desktop on my *boxes but I have seen cups loading 
>> at start up, might that be the same thing? My APC RS500 came with 
>> Windows software, my other UPSs are all Belkin and I have never yet 
>> checked what software comes with them, I'll have to look into this a 
>> little more closely. At the moment I use my UPSs to iron out the surges 
>> or carry the loads in the majority of outages which generally are around 
>> 30 seconds or less. I was asleep a few weeks ago when I heard one UPS 
>> beeping, the Windows PC on the APC UPS had shutdown but two *boxes and a 
>> second PC as well as my router and network switches were all still alive 
>> after a 20 minute outage which I thought was pretty good. The house ELCB 
>> had tripped presumably due to a large surge and I was able to reset it 
>> as soon as I was aware of it but I don't supposde an outage that long 
>> did the batteries in my UPSs any good at all.
>>
>> Brian
>>
>> Lee Spenadel wrote:
>>   
>>     
>>> Brian,
>>>
>>> I'm no guru myself, but here's the link to the i386 version of the apcups
>>> daemon for Linux.  It's an RPM which means you double-click it from the
>>> Linux desktop and it will automatically install.  I recently installed it
>>> and it's working fine:
>>>
>>>
>>>     
>>>       
>> http://sourceforge.net/project/downloading.php?group_id=54413&use_mirror=int
>>   
>>     
>>> ernap&filename=apcupsd-3.14.2-1.el4.i386.rpm&68540459
>>>
>>> Lee
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On Behalf Of
>>> windmill
>>> Sent: Saturday, December 22, 2007 9:37 AM
>>> To: Voice Over IP Tandem for Analog Switches
>>> Subject: Re: [VoIP] Asterisk-SIP Trunk
>>>
>>> Lee,
>>>
>>> I would love to be able to do that but I don't know enough about Linux. 
>>> I know that the UPSs can shutdown my Windows PCs because I have seen it 
>>> in practice although I don't have any UPS comms set up at all at 
>>> present. On the *boxes all the USB and serial ports are disabled to free 
>>> up interrupts otherwise the X100P cards might not work.
>>>
>>> Brian
>>>
>>> Lee Spenadel wrote:
>>>   
>>>     
>>>       
>>>> Brian,
>>>>
>>>> Apparently you have bad PC Karma.  Perhaps your * boxes reside on top of
>>>>     
>>>>       
>>>>         
>>> an
>>>   
>>>     
>>>       
>>>> ancient PBX burial ground...
>>>>
>>>> Seriously, why not image your hard drive so that when disaster strikes
>>>>       
>>>>         
>> you
>>   
>>     
>>>> can make a copy and slap it back in to a different machine.  Also, I
>>>>       
>>>>         
>> would
>>   
>>     
>>>> install the apcupsd on your Linux/ *box?  This way when the reserve power
>>>>     
>>>>       
>>>>         
>>> of
>>>   
>>>     
>>>       
>>>> the UPS dips below a certain level it will send a shutdown command to the
>>>> PC.  You won't have to run around shutting down the machines manually and
>>>> they will be shutdown  gracefully.
>>>>
>>>> Lee
>>>>
>>>> -----Original Message-----
>>>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On Behalf Of
>>>> windmill
>>>> Sent: Friday, December 21, 2007 9:51 PM
>>>> To: Voice Over IP Tandem for Analog Switches
>>>> Subject: Re: [VoIP] Asterisk-SIP Trunk
>>>>
>>>> I'm still not sure why but I have lost four *boxes in the last year for 
>>>> one reason or another. Something has become corrupted on the hard drives 
>>>> and I'm fairly certain that the almost daily power outages a few months 
>>>> ago had a great deal to do with it, that was before I had UPSs, they 
>>>> will only carry the load for 15 or 20 minutes but it's enough for most 
>>>> outages. Having said that there was a power fault yesterday which took 
>>>> out my village and about 20 others around Lincoln yesterday at 0813 and 
>>>> it took Central Electricity Networks 20 minutes to restore the supply by 
>>>> which time I had manually switched off all my telephone and computer 
>>>> equipment. I'll be shopping for more UPS kit in the January sales and 
>>>> another PC or two if I can't get my old *boxes running again, I think 
>>>> one has developed a motherboard fault which prevents it from reading the 
>>>> hard drive.
>>>>
>>>> Nothing seems to go smoothly these days, I have been trying to get ahead 
>>>> and delve deeper into Asterisk and Linux but things keep getting in the 
>>>> way, so much so that I tend to describe myself as 'on permanent
>>>>       
>>>>         
>> interrupt'
>>   
>>     
>>>>     
>>>>       
>>>>         
>>> !
>>>   
>>>     
>>>       
>>>> Brian
>>>>
>>>> Lee Spenadel wrote:
>>>>   
>>>>     
>>>>       
>>>>         
>>>>> I can tell you that I have had no major problems rebuilding my * PBX on
>>>>> Centos 4.5 and Asterisk 1.4.13.  It's been rock solid, though the Shared
>>>>> Line Appearance is feature still eludes me :(
>>>>>
>>>>> Lee
>>>>>
>>>>> -----Original Message-----
>>>>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On Behalf
>>>>>         
>>>>>           
>> Of
>>   
>>     
>>>>> windmill
>>>>> Sent: Friday, December 21, 2007 10:26 AM
>>>>> To: Voice Over IP Tandem for Analog Switches
>>>>> Subject: Re: [VoIP] Asterisk-SIP Trunk
>>>>>
>>>>> Ah yes FWD can be quite unreliable going down for hours at the weekend. 
>>>>> For backup I have the FWD communicator on my desktop but generally both 
>>>>> IAX and SIP are out together.
>>>>>
>>>>> I use Zoiper but also have Xlite and Express Talk with all three running
>>>>>         
>>>>>           
>>   
>>     
>>>>> from a single desktop.  I prefer real phones but  multiple softphones on
>>>>>         
>>>>>           
>>   
>>     
>>>>> a desktop are very handy for testing a dialplan from a single point. I 
>>>>> guess I'll be doing some of that over the next few days now that I've 
>>>>> had to rush my experimental *pbx6 into service and then I'll be looking 
>>>>> to rebuild/update my failed *pbx2 possibly giving Fedora 8 a try as I 
>>>>> got it on the front of a magazine last week.
>>>>>
>>>>> Brian
>>>>>
>>>>> Lee Spenadel wrote:
>>>>>   
>>>>>     
>>>>>       
>>>>>         
>>>>>           
>>>>>> I was having trouble with FWD running under iax - I don't think they
>>>>>>         
>>>>>>           
>>>>>>             
>>> were
>>>   
>>>     
>>>       
>>>>>> supporting it well at the time, so I went the sip route.  I also use
>>>>>>           
>>>>>>             
>> the
>>   
>>     
>>>>>> X-lite soft phone which seems to work well too.
>>>>>>
>>>>>> Lee
>>>>>>             


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