Grandstream Networks GXE502X Line Dialing Settings:, Caller ID Standard:

GXE502X User Manual 7/9/2008

Version 03

Default US Busy Tone: f1=480@-24,f2=620@-24,c=500/500)

Line Dialing Settings: This feature adjusts line dialing properties to adhere to the

PSTN line requirements.

• DTMF Digit Length: The DTMF Digit Length is the play time of DTMF in milliseconds

for each digit dialing out from the VOIP side to PSTN

• DTMF Digit Volume: The digit output power in dBm.

• DTMF Dial Pause: Dial pause is the time between 2 digits when dialing out through the

PSTN.

• Wait for Dial-Tone: If set to Yes, the device will first obtain a PSTN line and wait for a

dial tone from the central office. After obtaining the dial tone, the digits dialed will be

sent to the central office.

• Minimum Delay Before Dial: This parameter lets users configure a variable delay

before dialing the first digit into the PSTN.

Caller ID Standard: This feature configures caller ID handling to match local PSTN

settings.

• Caller ID scheme: This feature lets you select the model used by local PSTN provider.

Please check with local PSTN carrier for configuration information. Current supporting

including: Bellcore, ETSI, DTMF or NTT

• FSK Caller ID Minimum RX Level: This is an adjustable threshold value for the Caller

ID signal strength received to help the device to recognize Caller ID from different

networks. (-96 -0dB. Default -40dB)

• FSK Caller ID Seizure Bits: This field lets you choose a value of alternating bits (zeros

and ones) used for CID channel signaling. The Default is 200.

• FSK Caller ID Mark Bits: This feature lets you choose a value for the frequency

modulated signal of alternating bits (zeros and ones) used for synchronization. Default

150.