![](/images/new-backgrounds/1257698/25769853x1.webp)
Grandstream Networks, Inc. |
Enable Call Features:
No Yes (if Yes, Call Forwarding &
Use
Disable
No Yes
Send DTMF:
DTMF Payload Type:
Send Flash Event:
Onhook Threshold: FXS Impedance:
Caller ID Scheme:
Onhook Voltage:
Polarity Reversal:
NTP Server:
Send Anonymous:
Anonymous Method:
Time to ring:
Special Feature:
Syslog Server:
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| via RTP (RFC2833) |
| via SIP INFO | ||||
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101 |
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| Yes (Flash will be sent as a DTMF event if set to Yes) | ||||||
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800 ms |
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600 Ohm (North America)
Bellcore (North America)
36V
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| Yes | (reverse polarity upon call establishment and termination) | |||||
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time.nist.gov |
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| No |
| Yes | (caller ID will be blocked if set to Yes) | |||||
| Use From Header |
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| Use Privacy Header | |||||
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60 seconds |
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Standard
Syslog Level:
Session Expiration:
Caller Request Timer:
Callee Request Timer:
Force Timer:
UAC Specify Refresher:
UAS Specify Refresher:
Force INVITE:
Firmware Upgrade
NONE |
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180 | (in seconds. default 180 seconds) |
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90 | (in seconds. default and minimum 90 seconds) |
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| Yes |
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| No (Request for timer when making outbound calls) | ||||||
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| Yes |
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| No (When caller supports timer but did not request one) | ||||||
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| Yes |
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| No (Use timer even when remote party does not support) | ||||||
| UAC |
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| UAS |
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| Omit (Recommended) | |||
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| UAC |
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| UAS (When UAC did not specify refresher tag) | ||||||
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| Yes |
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| No (Always refresh with INVITE instead of UPDATE) | ||||||
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Upgrade Via |
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| TFTP |
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| HTTP |
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VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 600030