Voice - ATCOM Rainbow1 User Manual

Rainbow1 IP Phone User Manual
moment if Always Target or Busy Target was set, all incoming calls will be
forwarded to the targets preferentially.
2. Call Waiting：When Rainbow1 is on calling, and Call Waiting enabled , any new
incoming calls will not be rejected but ring back tone can be heard by the remote
end. if Call Waiting disabled, only one conversation will be available even multi-
accounts have been registered on Rainbow1 .
3. Block Call ID: Select "Yes" here, Caller ID will be blocked, Rainbow1 will call
others as anonymous.
4. Block Anc Call: Select "Yes" here, all anonymous call will be blocked, Rainbow1
will reject all anonymous callers.
5. Auto Answer: Select "Yes" here, Rainbow1 will answer all incoming calls by
speaker automatically.
6. Send Key: Define the Send key as "#" key or "*"Key. Press "#" Key or "*"Key
follow those phone number you want to dial, then number will be dialed out
immediately.

4.5.3 Voice

Echo Cancellation
1. VAD：Select "Yes" or "No" to enable or disable VAD (Voice Active Detection). If
enable, RTP packets will not be sent when Rainbow1 is mute.
2. CNG：Select "Yes" or "No" to enable or disable CNG (Comfort Noise Generator).
If enable, comfortable noise will be sent to the remote end to let it perceive the
conversation is still active when Rainbow1 is mute.
Jitter Buffer
Rainbow1 is able to buffer incoming voice packets to minimize out-of-order packet
arrival. This process is known as jitter buffer.
1. Type: Choose type of jitter buffer. When choose Fixed, the size of jitter buffer is
fixed. When choose Adaptive, the size of jitter buffer is the sum of Minimum
Delay and the size of RTP packets.
2. Min Delay: The minimum delay of the jitter buffer.
3. Max Delay: The maximum delay of the jitter buffer.
4. Normal Delay: This is used to set fixed jitter buffer which should be between
Min Delay and Max Delay.
ATCOM TECHNOLOGY CO., LIMITED www.atcom.cn
39