ZyXEL Omni TA 128 User Guide - Page 35

Answering a Call using MSN

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information received is too long. Both sides will then reset their link layer negotiation and re-send the frame again. Usually this will happen repeatedly until the call gets disconnected. The TA128 has a fixed maximum receiving frame size of 2048 octets which is larger than most devices can support. The default maximum sending frame size is 252 octets for V.120 and 2048 for X.75. If you need to change the maximum sending frame size, the ATCL command should be used. Type: ATCL252 (Set the frame size to 252 octets, user value between 1-2048) TA128 responds: OK Type: ATCL? (To inquire about the current setting of the packet length) TA128 responds: Maximum user data length in a packet (byte) : 252 Answering a Call using MSN When answering an incoming call, the call will first be identified if the caller number matches the MSN settings. The Multiple Subscriber Number (MSN) supplementary service enables multiple ISDN numbers to be assigned to a single ISDN BRI line. It allows the caller to select, via the public network, one or more distinct terminals from a variety of terminal choices. Since the Omni supports many different communication protocols and two analog adapters, each of these ports can be assigned to an ISDN number using the following command: AT&ZIn=s (where 's' is the MSN) &ZI0=s assigns MSN 's', phone number for X.75. 23

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23
information received is too long. Both sides will then reset their link
layer negotiation and re-send the frame again. Usually this will
happen repeatedly until the call gets disconnected.
The TA128 has a fixed maximum receiving frame size of 2048
octets which is larger than most devices can support. The default
maximum sending frame size is 252 octets for V.120 and 2048 for
X.75. If you need to change the maximum sending frame size, the
ATCL command should be used.
Type:
ATCL252<Enter>
(Set the frame size to 252 octets,
user value between 1-2048)
TA128 responds:
OK
Type:
ATCL?<Enter>
(To inquire about the current
setting of the packet length)
TA128 responds:
Maximum user data length in a packet (byte) : 252
Answering a Call using MSN
When answering an incoming call, the call will first be identified if
the caller number matches the MSN settings.
The Multiple Subscriber Number (MSN) supplementary service
enables multiple ISDN numbers to be assigned to a single ISDN
BRI line. It allows the caller to select, via the public network, one or
more distinct terminals from a variety of terminal choices. Since the
Omni supports many different communication protocols and two
analog adapters, each of these ports can be assigned
to an ISDN
number using the following command:
AT&ZIn=s
(where ‘s’ is the MSN)
&ZI0=s
assigns MSN ’s’, phone number for X.75.