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- CISCO 7940 Issuesby victor.m.perez Wed 08 of Sep, 2010I am making a new thread because the oldest threads relating to this issue (somewhat) are a couple years old. It's something surprisingly common, and here is my story:
So, having worked at a couple of call centers that used the Cisco 7940 and 7960, I decided I wanted to buy one, so I did. Lo and behold, it turns out that the unit needs POE or a brick in order to turn on. Since I only wanted one phone for home, I decided against buying a POE capable switch. Instead, I bought a brick. When it finally turned on, lo and behold, it has some weird interface that won't let me define SIP parameters. After a couple of days of research, I find out the phone has an SCCP firmware, and now I need to flash it with SIP.
... - Voip blocking problemby speedvoip Tue 07 of Sep, 2010Nowardays, many ISPs controlled by government are performing blockage of VoIP all over the world, especially in UAE, Oman , Qatar , and Africa. Speedvoip has unique Security Solution which helps Wholesaler, ITSP and reseller to bypass VoIP Blockage.
If you have met same problem, pls kinldy contact me, tks
... - how to using speex lib to cancel echo in IP phone?by kafeikejian Fri 03 of Sep, 2010Hi:
I am developing an IP Phone on ARM(samsung 6410; CPU:667MHZ), and use lib mediastreamer.2.6.0 for audio communication,
but now the echo occur while talking. In the lib mediastreamer.2.6.0, I find a filter can do echo Cancellation by calling lib speex.
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