Re: [SR-Users] Green VoIP - energy efficiency and performaces of v3.0

2011-05-25 Thread Jan Janak
On Wed, May 25, 2011 at 06:54, Jeremya wrote: > These figures pale into insignificance compared to the power required > for standard SIP devices - typically 5-8 watts per device multiplied by > the number of devices. > > When you factor in Gigabit Ethernet the power ups significantly. > > Optimisa

Re: [SR-Users] Green VoIP - energy efficiency and performaces of v3.0

2011-05-25 Thread Jeremya
Hello Henning, My application is slightly different in that I have hundreds of nodes each running an instance of Kamailio on embedded servers in a failure tolerant configuration. This is in a risk-of-life application and each node has large backup power supplies. In reality kamailio takes milliwa

Re: [SR-Users] Green VoIP - energy efficiency and performaces of v3.0

2011-05-25 Thread Jeremya
I should point out that my SIP business is risk-of-life voice services where I have to arrange to power SIP devices and communications devices from alternate energy sources for extended periods, so I am intimately aware of every watt that is used in SIP communications. My systems use kamailio in e

Re: [SR-Users] Green VoIP - energy efficiency and performaces of v3.0

2011-05-25 Thread Henning Westerholt
On Wednesday 25 May 2011, Jeremya wrote: > These figures pale into insignificance compared to the power required > for standard SIP devices - typically 5-8 watts per device multiplied by > the number of devices. > > When you factor in Gigabit Ethernet the power ups significantly. > > Optimisation

Re: [SR-Users] Green VoIP - energy efficiency and performaces of v3.0

2011-05-25 Thread Jeremya
These figures pale into insignificance compared to the power required for standard SIP devices - typically 5-8 watts per device multiplied by the number of devices. When you factor in Gigabit Ethernet the power ups significantly. Optimisation at the server level is not significant on any scale. O

[SR-Users] Green VoIP - energy efficiency and performaces of v3.0

2011-05-25 Thread Daniel-Constantin Mierla
Hello, Jan Janak conducted a very interesting research project regarding energy efficiency of VoIP systems during 2010, a collaboration between iptel.org and Columbia University. The team used the source code from sip-router.org GIT repository from January 2010, which corresponds to Kamailio