Specifications

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Chapter 12: Troubleshooting
Features
Transfer
If you are just transferring between extensions attached to the AudioCodes Mediant Gateway ,
then the PBX's configuration shouldn't matter, but if you are transferring to and from extensions
attached to the PBX, the PSTN, or another Mediant Gateway then the PBX's settings are very
important. Here are a few things to check if these types of transfers (or conferences) are not
working:
1 (ACM) On Page 2 of the trunk group form, ensure Disconnect Supervision is set to a
value of Y for both In and Out
2 (ACM) Check Page 1 of the change system-parameters features form. You may want to
try setting the Trunk-to-Trunk transfer field to a value of all.
Caution: Toll fraud warning
This configuration will increase your system’s exposure to toll fraud.
Call Forward
If users want to be able to Call Forward from extensions on the PBX to mobile extensions you
need to set the Class of Service of the phone that is doing the forwarding to a COS that does
not Restrict Call Fwd-Off Net
1 (ACM) Check parameters:
○ Check the current COS of the station by doing a display station xxxx command
(where xxxx is the stations' extension number). The COS will be one of the fields on
the first page, in the upper right hand corner
» Ensure with the customer that it is ok if all stations with this COS be modified to
allow call forward off net if this field needs to be toggled; if not they may need to
create a new COS for specific phones that will require this ability. (For some
customers this may be a toll fraud concern.)
○ Check the COS's restriction level by using the change cos command. Your stations
COS is listed in the top row Look vertically down beneath your stations COS for the
field Restrict Call Fwd-Off Net.
» If this is currently set to a value of Y, this is at least part of the reason why Call
Forward to the 84-Series handset is not working for you. Change it to a value of n