As best that I can remember: The voice packets over VOIP have IP addresses
and are routable. The voice packets in VOFR do not have IP addresses and as
such can traverse only the FR link. VOIP can be run over FR links. See:
http://www.cisco.com/warp/public/788/index.shtml
Where they use VOFR to refer to VOIP over FR!
The following is from CCO:
Voice over IP enables a router to carry voice traffic (for example,
telephone calls and faxes) over an IP network. In Voice over IP, the DSP
segments the voice signal into frames, which are then coupled in groups of
two and stored in voice packets. These voice packets are transported using
IP in compliance with ITU-T specification H.323.
Voice Over Frame Relay. Voice over Frame Relay enables a router to carry
voice traffic (for example, telephone calls and faxes) over a Frame Relay
network. When sending voice traffic over Frame Relay, the voice traffic is
segmented and encapsulated for transit across the Frame Relay network using
FRF.12 encapsulation.
-----Original Message-----
From: Oscar Rau [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 11, 2000 3:07 PM
To: Cisco GroupStudy
Subject: VOIP and VOFR
Hi,
How different is VOIP and VOFR? I thought IP networks are possible over
Frame Relay (WANs).
In this case, does VOIP is to be interpreted as a LAN implementation of
Voice network?
Can some please explain the differences between VOIP and VOFR?
Thank you in advance.
--
Oscar Rau
[EMAIL PROTECTED]
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