Ericsson iPECS-100 Feature Description And Operation Manual page 455

iPECS-LIK
Feature Description & Operation Manual
 Prefix 1 (Red) is always added to the To header. This prefix is fixed and used
by all customers.
 Prefix 2 (Blue) is always added to the From and Contact header. This prefix is
a trunk ID and each trunk has a unique prefix.
Example of new admin programming
The prefixes are only used in case of mobile extension and should therefore be
related to the MEX programming in pgm 133.
Mobile Extension Call
From/Contact ID
P-Asserted-Identity
Remote-Party-ID
Diversion
To Prefix
From/Contact Prefix
2. Outgoing call (from MEX to internal station or external number)
Outgoing call requires that iPECS can detect out-band signaling and analyze that
number to decide if it is an external call, internal call or some other command.
1. MEX 105 calls the Public user 08920533 and an Invite [B9 is sent to iPECS.
2. iPECS detects that it is a MEX call by finding the prefix 9999 in the To header.
iPECS checks if the number in the From header exists in MEX table (pgm 236).
iPECS checks the number after 9999 and detects that it is an external number.
iPECS sends an outgoing Invite [A] to the Public user.
To: < sip:+999908920533@tdc.se >
From: < sip:70111111@se-pgw1.ipt.ip.tele.dk:5060;user=phone >
9999 is a prefix with 3 to 5 digits that can be chosen freely by the customer.
When a call is placed from the mobile phone the To header format is 9999 +
dialed number. It does not matter what kind of number the mobile user dials.
[A] Outgoing Invite
Normal Invite with the same format as if it was LIP 105 who made a call to the
Public user.
Analyzing the called party number
When we have removed 9999 from the To header we have to detect what kind
of number the remaining digits are. Is it an internal number (station or group
number), feature code or external number' With feature code I mean the codes
used for "Remote control for Mobile Extension in iPECS" described in SE-LIC-
08056. The calling party number could be check like this;
1. Is it a station/group number? If YES; setup a call to that station/group. If NO;
continue.
2. Is it a feature code? If YES; enable/disable that feature. If NO; continue.
3. If none of the above it is an external number. Setup an external call.
Example of new admin programming
Pgm 133: SIP MEX Out-band Prefix: 1 to 8 digits (to define the out-band prefix)
Pgm 133: Use MEX Out-band Signaling: Yes/No
3. Displaying internal station number
If we display internal station numbers for internal calls the feature feels more
integrated and gets easier to use. This is a special case and only applies to when
the mobile calls an internal station or when an internal station calls the mobile.
Range
EXT
ORG
Fixed Table
Not Use/EXT/ORG/Fixed Not Use
24 characters
24 characters
Default
EXT
EXT
EXT
410
Issue 6.1