Ericsson RBS 2106 Reference Manual page 249

24.4.3 Half Rate Speech
The round-trip delay for a half rate speech channel, introduced by the
BTS, is less than 63 ms.
The values are including additional delay due to the measuring method
as described in /GSM 11.20:7.2.6, table 7–2b/.
24.4.4 Half Rate Data
Transparent data services supported:
•
•
•
•
•
Non-transparent data services supported:
•
The round-trip delay for a half rate data channel, introduced by the BTS
is:
•
•
The values are including additional delay due to the measuring method
as described in /GSM 11.20:7.2.6, table 7–2b/.
EN/LZT 720 0008 P2A
2001-11-28
4.8 kbits/s
2.4 kbits/s
1.2 kbits/s
1200/75 bits/s
600 bits/s
4.8 kbits/s
Less than 284 ms for TCH/H4.8 and TCH/H2.4(this includes
TCH/H1.2, TCH/H1.2/75 and TCH/H0.6 as well)
Less than 315 ms for TCH/H4.8NT.
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Speech and Data Services
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