Specifications

36 IBM Voice Over Frame Relay Perform Guide
3. Use the VOICE_PORTS V1A RATE command to configure the voice port rate. For
ATC, the supported rates are:
• ATC-supported rates: 7.47 to 32 Kbps.
• CELP-supported rates: 5.33, 8.00, and 9.6 Kbps.
• E-CELP-supported rates: 4.8, 7.47, and 9.6 Kbps
For example, to select a 9.6 Kbps rate for voice port V1A, type:
VOICE_PORTS V1A RATE 9600
4. Configure the termination impedance for analog voice ports. The choices are:
• 600
• 900/COMPLEX (International VFAX)
For example, to select 600W impedance for voice port V1A, type:
VOICE_PORTS V1A TELCO TERMINATION 600
5. Configure the digital voice port signaling to 2, 4, or 16 state. The default is 16
state, which should be satisfactory for most applications. For example, to
select 16-state signaling for voice port V1A, type:
VOICE_PORTS V1A TELCO SIGNALLING 16_STATE
6. Configure the voice port out-of-service signaling for busy or idle (analog) or
ABCD bit pattern (digital). The following example shows how to select
out-of-service for voice port V1A:
VOICE_PORTS V1A TELCO OOS 1010
7. Configure the digital ABCD bit translations to interface to the PBX. You must
translate the Tx side to 1111 SEIZE and to 0000 for IDLE, then translate back
at the remote Rx side.
Table 12 shows one 0101 SEIZE translated to 1111 on the Tx side and 1101
IDLE translated to 0000 on the Tx side. The remote Rx side will reverse the
translations.
Table 12. ABCD Bit Translation Example
The following example shows how to perform a translation. As this example
shows, the Tx side translation is entered first, followed by the Rx side
translation. In addition, you must translate Tx and Rx to the PBX to which you
are connected.
VOICE_PORTS V1A VIA TELCO TRANSLATE 0123
4F67 89AB C0EF D123 4567 89AB CDE5
8. Configure Fax III to enable fax to pass at 9600 baud, with a voice rate of 9600.
A 7.47 Kbps voice rate passes faxes at 7200 bps; a 4.8 Kbps voice rate
passes faxes at 4800 bps. For example, to enable faxes to pass on voice port
V1A, type:
VOICE_PORTS V1A FAX_III ENABLE
DEFAULT
0123456789ABCDEF
0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1001 1100 1101 1110 1111
TX SIDE TRANSLATE 1101 TO 0000 AND 0101 TO 1111
01234F6789ABC0EF
0000 0001 0010 0011 0100 1111 0110 0111 1000 1001 1010 1011 1100 0000 1110 1111