Aastra Telecom Pro 160 User Manual

Page of 276
Configuring VoIP Settings
41-001190-01 Rel. 1.1, Rev. 00
4-49
Configuring AastraLink Pro 160 System and Network Parameters
Calling party identification
The AastraLink Pro 160 SIP phones automatically display the calling party name 
and number (CLID) when an incoming SIP call is received on a registered trunk, 
using the FROM: address received in the header of the SIP message. The CLID is 
also stored in the call detail records (CDR logs).
Outgoing SIP trunk calls
Call routing
The AastraLink Pro 160 default prefix for outbound SIP trunk calls is set to 8. 
When Aastralink Pro users make a call, they dial the following:
(prefix digit) + (access digit) + (directory number)
Where: 
prefix digit = 8
SIP trunk access digit = 0 - 9
directory number
For example, the number 829785551212 routes the outbound call over SIP trunk 
#2 to directory number 9785551212.
The AastraLink Pro 160 routes any calls with a matching SIP-trunk prefix and 
trunk-accessor digit, to the appropriate SIP trunk. You can provision up to 10 SIP 
trunks.
Reference
For a table of dial plan numbers, see 
 on 
.
Calling party identification
By default, the AastraLink Pro 160 sets the calling party name and number 
(CLID) in the FROM: address of the SIP trunk call, using the extension number 
of the phone which originated the call. In cases where the SIP trunk service 
provider does not accept arbitrary CLID, AastraLink allows a static CLID to be 
provisioned instead; setting the "Caller ID" field on the SIP trunk configuration 
overrides the per-call CLID and uses this value for all outgoing calls placed to the 
SIP trunk.