
| HandyTone  | Grandstream Networks, Inc. | 
iLBC frame size:
iLBC payload type: Silence Suppression:
Voice Frames per TX: Fax Mode:
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 | T.38 (Auto Detect) | 
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Layer 3 QoS:
Layer 2 QoS:
Allow incoming SIP messages from SIP proxy only:
Use DNS SRV:
User ID is phone number:
SIP Registration: Unregister On Reboot:
Register Expiration: Early Dial:
Allow outgoing call without Registration:
Dial Plan Prefix:
No Key Entry Timeout: Use # as Dial Key:
local SIP port:
local RTP port: Use random port:
NAT Traversal:
| 48 | |
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 | 802.1Q/VLAN Tag | 0 | 802.1p priority value | 0 | 
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 | 3600 | (in seconds. default 1 hour, max 45 days) | 
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 | No | 
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 | Yes (use "Yes" only if proxy supports 484 response) | 
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 | 4 | 
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 | No | 
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 | Yes (if set to Yes, "#" will function as the Dial key) | 
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 | 5060 | (default 5060) | 
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5004  (1024-65535,
(1024-65535,
 No
No  Yes
Yes
No
 Yes, STUN server is:
Yes, STUN server is: 

 (URI or IP:port)
(URI or IP:port)
| 20 | (in seconds, default 20 seconds) | 
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23