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7.9.4.
Signalling tones for calls to GSM
Dialtone to NT interface on empty SETUP
– this menu sets
the type of dialling tone generated to the NT interface by
GSM gateway on receiving SETUP message without called
party number field
Ring tone -
in this menu is possible to select the type of
ringing tone generated by the GSM gateway when calling to
the GSM network
7.9.5. Relax delay
Time delay between two calls to the GSM network. Establishing
of new call to GSM network thru the same GSM module is
possible after expiry of this timeout. The GSM module clears the
call to GSM network during this time. The optimum value is
about 2 s.
7.9.6. DTMF Delay
Delay [1/100 s] –
sensitivity of DTMF receiver from GSM network. Parameter
“delay” means 10*miliseconds which is added to default value 20ms. The total
time is minimal delay between two DTMF chars. Example: DTMF number=30
delay=30*10+20=320.
7.9.7. SIM card number
In this section is possible to define which SIM card number
should be used in the GSM gateway:
IMSI
– International Mobile Subscriber Identity
SCID
– SIM Card Identification Number
**
7.9.8. Don’t send CLIP
By enabling this function you deactivate transfer of calling party number (CLIP)
from GSM to ISDN. In case, that this parameter will be switched off, CLIP from
GSM will be forwarded to ISDN.
**
supported by Siemens GSM modules only
VoIPon www.voipon.co.uk [email protected] Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
