asked on 8/10/2011

3com nbx 100 slowing down

I have a 3com NBX100 IP phone system and it keeps slowing down. The calls become garbled and the intercom calls as well are garbled. After a reboot it is fine. Have already called the phone company and they say it is not the local lines doing this. They routed over the phone system and it was OK. I have replaced the line card processor. Same result. Not sure if anyone there has experience with the 3com NBX 100.

InfoPath Voice Over IP Telecommunications

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jfrady

8/10/2011

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jfrady

8/10/2011

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Voice Over IP

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN). Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

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