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Grandstream Networks, Inc. HT496 User Manual Page 23 of 29
Firmware 1.0.3.86 Last Updated: 7/2007
TABLE 10: HT496 Individual Account Settings Definitions
SIP Server This field contains the URI string or the IP address (and port, if different from 5060) of
the SIP proxy server. e.g., the following are some valid examples: sip.my-voip-
provider.com, or sip:my-company-sip-server.com, or 192.168.1.200:5066
Outbound Proxy This field contains the URI string or the IP address (and port, if different from 5060) of
the outbound proxy. If there is no outbound proxy, this field SHOULD be blank. If not
blank, all outgoing requests are sent to this outbound proxy.
SIP User ID This field contains the user part of the SIP address for this phone. e.g., if the SIP
address is sip:my_user_id@my_provider.com, then the SIP User ID is: my_user_id.
Do NOT include the preceding “sip:” scheme or the host portion of the SIP address in
this field.
Authenticate ID
SIP service subscriber’s Authenticate ID. Auth ID can be identical to the SIP User ID.
Authenticate Password
SIP service subscriber’s account password.
Name
SIP service subscriber’s name for Caller ID display.
Use DNS SRV
Default is No. If set to Yes the client will use DNS SRV for server lookup.
User ID is Phone Number If the HT496 has an assigned PSTN telephone number, this field should be set to
“Yes”. Otherwise, set it to “No”.
If “Yes” is set, a “user=phone” parameter will be attached to the “From” header in SIP
request.
SIP Registration Controls whether the HT496 needs to send REGISTER messages to the proxy server.
The default setting is Yes.
Unregister on Reboot Default is No. f set to Yes, the SIP user’s registration information will be cleared on
reboot.
Register Expiration This parameter allows the user to specify the time frequency (in minutes) the HT496
refreshes its registration with the specified registrar. The default interval is 60 minutes
(or 1 hour). The maximum interval is 65535 minutes (about 45 days).
Local SIP port Defines the local SIP port the HT496 will listen and transmit. The default value for FXS
port 1 is 5060. The default value for FXS port 2 is 5062.
Local RTP port Defines the local RTP-RTCP port pair the HT496 will listen and transmit. It is the base
RTP port for channel 0. When configured,
channel 0 uses this port _value for RTP and the port_value+1 for its RTCP; channel 1
uses port_value+2 for RTP and port_value+3 for its RTCP.
The default value for FXS port 1 is 5004. The default value for FXS port 2 is 5008.
Use Random Port This parameter forces the random generation of both the local SIP and RTP ports when
set to Yes. This is usually necessary when multiple HT496 are behind the same NAT.
SIP Registration Failure
Retry Wait Time
In case sip server fail from some reason, the HT496 will try to re-register not according
to standard SIP timers, but according to preconfigured interval. Recommended to leave
default value 20sec. Designed by special request of big service providers.
DTMF Payload Type
This parameter sets the payload type for DTMF using RFC2833.
Send DTMF This parameter specifies the mechanism to transmit DTMF digit. There are 3 modes
supported: 1) in audio which means DTMF is combined in audio signal (not very reliable
with low-bit-rate codec), 2) via RTP (RFC2833), or 3) via SIP INFO. Multiple selections
of DTMF method are supported.
Send Flash Event
Default is No. If set to yes, flash will be sent as DTMF event.