Grandstream Networks HT503 User Manual page 74

FSK Caller ID Seizure
Bits
FSK Caller ID mark
bits
Caller ID Transport
Type
Hook Flash Timing
Gain
Default is: 70bits. Range is from 0 to 800bits.
Default is: 40bits. Range is from 1 to 800bits.
According to customer's choice CID information will be transferred from
PSTN network to VoIP network using following rules:
1. via SIP from - PSTN CID is in the SIP From field
2. via P-Asserted-Identity - SIP From field uses the pre-configured
account user Id. PSTN CID is in the P-Asserted-Identity field
3. via P-Preferred-Identity - PSTN CID is in the P-Preferred-Identity
field
4. Send anonymous - SIP From field uses "anonymous". PSTN CID
is put in the P-Asserted-Identity field
5. Disable - PSTN CID will not be sent. SIP From field uses the pre-
configured account user ID
The time period when the cradle is pressed (Hook Flash) to simulate a
FLASH. Adjust this time value to prevent unwanted activation of the
Flash/Hold and automatic phone ring-back.
Voice path volume adjustment.
• RX is a gain level for signals transmitted by FXO (FXO-To-VoIP
volume)
• TX is a gain level for signals received by FXO(FXO-To-PSTN
volume).
Default = 0dB for both parameters. Loudest volume: +6dB; Lowest volume:
-6dB.
User can adjust volume of call on either end using the Rx Gain Level
parameter and the TX Gain Level parameter located on the FXO Port
Configuration page. These parameters affect call volume ONLY for calls
placed to/from PSTN and VoIP networks.
If call volume is too low when using VoIP extension, adjust volume using the
Rx Gain Level parameter under the FXO Port Configuration page.
If voice volume is too low at the other end (PSTN side), user may increase
HT503 User Manual
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