coMsat Multichannel PRA
coMsat Multichannel PRA
coMsat Multichannel PRA
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<strong>Multichannel</strong> <strong>PRA</strong><br />
6.4.12.1 Configuration<br />
Three codes need to be specified which are used to invoke the call hold ("Hold"), call<br />
retrieve (”Retrieve”) and call transfer service (”Transfer”). All ten digits (0, 1, ...9)<br />
and the * or # signs are allowed. It is possible to configure multiple digits, so that an<br />
erroneous invoking of a virtual PBX function can be avoided. In this case, the desired<br />
function is activated if the configured digits are received in the order specified. The<br />
time between the dialling of the digits does not matter.<br />
Note: Since the # sign is used to terminate overlapped dialling you should be careful<br />
if using it for other functions.<br />
For transferring a call inside the GSM network, an additional setting, the "GSM<br />
transfer sequence", is needed. This is a string containing the digits that would be<br />
dialled manually on a cellular phone, followed by the send key (same as hook off).<br />
Usually these are three digits with ‘*’ in front and ‘#’ behind them, like “*199#“. The<br />
network provider supplies this information.<br />
Note: This feature is not supported in all networks.<br />
If phones connected to the internal ISDN shall be able to call other internal ISDN<br />
phones, it is also necessary to add suitable routing information to the routing table. If<br />
e.g. internal phones have the phone numbers 10-29, an entry is needed that<br />
indicates local routing of numbers starting with “1” or “2” within the internal ISDN<br />
(PBX).<br />
In router mode, a distinction of internal numbers and external numbers that may start<br />
with the same digits is needed. Therefore you should define a special number for<br />
external access or omit the area code (see "Number recognition" parameters).<br />
Figure 45: Virtual PBX parameters<br />
6.4.12.2 Call Hold<br />
During an active call, dialling the configured hold request digit(s) causes the audio<br />
connection to be disconnected. The held user gets the announcement "Call was put<br />
on hold, please wait" (or the march tone if no announcement was assigned) while the<br />
holding user hears the announcement "Call is put on hold, please dial" (or the dial<br />
tone if no announcement was assigned).<br />
The user who has invoked the hold function now is able to dial any other number, i.e.<br />
an internal or external one. This number is dialled using DTMF tones. During<br />
dialling, it is not possible to retrieve the held call, because the retrieve digit(s) would<br />
be evaluated as part of the called party number. Only if the new called number is<br />
date: page: file:<br />
15.02.2008 10:32 54 Manual <strong>coMsat</strong> <strong>Multichannel</strong> <strong>PRA</strong> 3-3 eng.doc<br />
Note Protection Mark according to DIN 34!
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