Step 4
Set the
Debug Level
to
Error
,
Notice
, or
Debug
.
Step 5
To capture SIP signaling messages, click the
Ext
tab and navigate to
SIP Settings
. Set the
SIP Debug Option
to
Full
.
Step 6
To collect information about what type of NAT your router uses click the
SIP
tab and navigate to
NAT
Support Parameters
.
Step 7
Click
Voice
>
SIP
and navigate to
NAT Support Parameters
.
Step 8
Set
STUN Test Enable
to
Yes
.
Step 9
Determine the type of NAT by viewing the debug messages in the log file. If the messages indicate that the
device is using symmetric NAT, you cannot use STUN.
Step 10
Click
Submit All Changes
.
Dial Plan
Dial Plan Overview
Dial plans determine how digits are interpreted and transmitted. They also determine whether the dialed
number is accepted or rejected. You can use a dial plan to facilitate dialing or to block certain types of calls
such as long distance or international.
Use the phone web user interface to configure dial plans on the IP phone.
This section includes information that you must understand about dial plans, and procedures to configure your
own dial plans.
The Cisco IP Phone has various levels of dial plans and processes the digits sequence.
When a user presses the speaker button on the phone, the following sequence of events begins:
1
The phone begins to collect the dialed digits. The interdigit timer starts to track the time that elapses
between digits.
2
If the interdigit timer value is reached, or if another terminating event occurs, the phone compares the
dialed digits with the IP phone dial plan. This dial plan is configured in the phone web user interface in
Voice
>
Ext(n)
under the
Dial Plan
section.
Digit Sequences
A dial plan contains a series of digit sequences, separated by the
|
character. The entire collection of sequences
is enclosed within parentheses. Each digit sequence within the dial plan consists of a series of elements that
are individually matched to the keys that the user presses.
White space is ignored, but can be used for readability.
Function
Digit Sequence
Characters that represent a key that the user must press on the phone
keypad.
0 1 2 3 4 5 6 7 8 9 0 * #
Any character on the phone keypad.
x
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
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Dial Plan
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