5 —  VoIP overview
5-72 November 2013 Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02
Edition 01 3FE 55873 AAAA TCZZA
ONT Product Information Guide
Notes
(1)
The default value of the parameter outbound_uri_prefix is “sip” and not “tel”. If necessary, change the configuration of 
the value to “tel”.
(2)
Does not apply to package C, D, and E ONTs and MDUs
5.8 Digit map
A digit map is used to control how the ONT or MDU processes dialed digits for a 
voice service.
Besides simple collection of the digits of a phone number, it allows for ONT or MDU 
internal handling of special dialed sequences like 911 and service codes. The ONT 
utilizes the configured digit map at call origination, or in some cases after flash-hook.
In SIP mode 1, there is no digit collection by the ONT after flash-hook. In SIP mode 
2, digit collection is usually started after a mid-call flash-hook. In all other cases 
digits are simply passed in-band in the voice path, either as tones or as RFC 2833 
packets. The digit map also allows for these subscriber interaction functions:
• timeout of digit collection
• termination of digit collection
• output of recall dial tone or normal dial tone
When digit collection is started the ONT digit map library (DML) software is 
initialized with timers and the configured digit map string. The DML builds a “tree” 
with branches for each possible matching path possible in the digit map string from 
left to right. As each digit is input:
1 The tree is traversed using the digits entered so far until a matching pattern is 
found.
local_country_code Specifies the display of the 
calling party number. The ONT 
removes the local country code 
from the received phone number 
only when the enable_etsi 
parameter is configured as false 
and the length of the received 
phone number is greater than or 
equal to 10+ x, where x is the 
length of country code. The 
default is an empty string. When 
the default is an empty string, 
then the country_code value is 
used.
NYAll 
package
s except 
C, D, 
and E
Applicable 
for iConfig 
mode. The 
ONT uses 
country_cod
e property in 
ftp mode
N/A
digit_sending_mode The digit sending mode to be 
applied. Possible values are:
• en-bloc
• overlap-invite
• overlap-indialog
YYPackage 
L ONTs 
only
YN/A
Parameter Description Mode
1
Mode
2
Device OMCIv2 
support?
TL1 or CLI 
parameters
(30 of 30)