This object specifies the prefix of the name schema for
default RTP terminations.
The value of this object must be unique among the
following objects:
cMediaGwCcCfgDsNamePrefix
cMediaGwCcCfgRtpNamePrefix
cMediaGwCcCfgAal1SvcNamePrefix
cMediaGwCcCfgAal2SvcNamePrefix
It is defaulted to 'TGWRTP'.