MyPBX U300 Administrator Guide
27
Nsf
Used with AT&T PRIs. If outbound calls are being rejected due
to "Mandatory information element missing" and the missing IE
is 0x20, then you need this setting.
Echo Cancellation
Disable or enable echo cancellation; it is recommended not to
turn this off.
Codec
Set codec:
alaw
ulaw
2) Caller ID Prefix
Figure 6-2 PRI Caller ID Prefix
Table 6-2 Descirption of PRI Caller ID Prefix
Caller ID Prefix
ISDN Dialplan
These settings are set to make the caller ID prefix work
according to information sent from the BRI provider. ISDN/
telephony numbering plan Recommendation E.164.
International Prefix
When there are international calls coming in via this PRI trunk,
the International Prefix you have set here will be added before
the CID. So you can know this is an international call before you
answer it.
National Prefix
When there are national calls coming in via this PRI trunk, the
National Prefix you have set here will be added before the CID.
So you can know this is a national call before you answer it.
Local Prefix
When there are Local calls coming in via this PRI trunk, the
Local Prefix you have set here will be added before the CID. So
you can know this is a local call before you answer it.
Private Prefix
When there are Private calls coming in via this PRI trunk, the
Private Prefix you have set here will be added before the CID.
So you can know this is a Private call before you answer it.
Unknown Prefix
When there are calls with unknown number coming via this PRI
trunk, the Unknown Prefix you set here will be shown as the
caller ID.
3) Dialplan