Instruction/ maintenance manual of the product CDMA2000 Ericsson
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Intr oduction Push to talk is the common name for half- duplex voice services activated by pressing a button. PoC is the name of the open spec- ifications for this service.
Ericsson Review No. 1, 2004 17 efficiency over the air interface. This prob- lem has been addressed through signaling compression (SigComp), another IETF stan- dard initiated by Ericsson.
the media resource function. Because Instant Talk is a half-duplex service, the media resource function must prevent two or more users from sending media at the same time. This is called talk burst control. The MRF employs a request/response mech- anism to control transmission rights.
Ericsson Review No. 1, 2004 19 frame-bundling feature is supported in the AMR and EVRC payload format. Built-in functionality in the MRF makes it possible to order clients to change the number of frames in an RTP packet to adapt to current network conditions.
An important point after buying a device Ericsson CDMA2000 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ericsson CDMA2000 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ericsson CDMA2000 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ericsson CDMA2000 you will learn all the available features of the product, as well as information on its operation. The information that you get Ericsson CDMA2000 will certainly help you make a decision on the purchase.
If you already are a holder of Ericsson CDMA2000, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ericsson CDMA2000.
However, one of the most important roles played by the user manual is to help in solving problems with Ericsson CDMA2000. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ericsson CDMA2000 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
