Kuhnt AS55 Series, Service Manual

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SERVICE MANUAL AS55X
55Xseries_manual_V3.22 (18-08-15) www.kuhnt.com 151
Some PBXes cannot handle the SIP connection to an AS55X at the LAN properly if it is
also registered at a SIP provider and set an IP address and port redirection to the
public values. By setting of bit 67 this redirection can be ignored.
8.4 Release 3.04
8.4.1 New and improved features

SIP over TCP
TCP is now available as additional transport protocol for SIP. UDP remains the default
transport protocol as SIP has its own mechanism to avoid data loss. The TCP protocol
can be chosen with the extended SIP settings.

Speed dialling list for GME
If GME and GSM-PBX is used, the speed dialling list from GSM is available for GME
dialling as well.

SIP INFO for supervision of connection
Some PBXes do not handle reINVITES for connection supervision properly. With this
release, the INFO method is selectable alternatively for this issue.

VLAN tagging
VLAN tagging is implemented now. A VLAN tag with VLAN ID and priority can be
defined in the extended SIP settings form. This tag is valid for SIP over TCP and UDP
and for RTP.

Pass GSM CLIP in SIP client mode
Normally a SIP client can send only his own user number or username as CLIP to the
provider. But in special cases the AS55X is wanted to include the GSM CLIP as calling
party number into the INVITEs to the provider. This facility is implemented now.

Receive dialable GSM numbers in SIP client mode
The AS55X in client mode can now receive a dialable GSM number. All received
numbers that cannot be assigned to the GSM PBX link list and that are not the clients
local username can be treated as direct dialable GSM number.