Advanced User configuration includes not only the end user configuration, but also advanced configuration such as SIP configuration, Codec selection, NAT Traversal Setting and other miscellaneous configuration.
Table 12: Advanced User Configuration Page Definitions
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| Admin |
| Administrator password. Only the administrator can configure the “Advanced Settings” |
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| Password |
| page. Password field is purposely blank for security reasons after clicking update and |
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| saved. The maximum password length is 25 characters. |
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| Silence |
| This controls the silence suppression/VAD feature of the audio codec G.723 and G.729. |
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| Suppression |
| If set to “Yes”, when silence is detected, a small quantity of VAD packets (instead of |
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| audio packets) will be sent during the period of no talking. If set to “No”, this feature is |
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| disabled. |
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| Voice Frames |
| This field contains the number of voice frames to be transmitted in a single Ethernet |
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| per TX |
| packet (be advised the IS limit is based on the maximum size of Ethernet packet is 1500 |
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| byte (or 120kbps)). |
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| When setting this value, be aware of the requested packet time (ptime, used in SDP |
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| message) is a result of configuring this parameter. This parameter is associated with the |
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| first codec in the above codec Preference List or the actual used payload type |
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| negotiated between the 2 conversation parties at run time. e.g., if the first codec is |
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| configured as G.723 and the “Voice Frames per TX” is set to 2, then the “ptime” value in |
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| the SDP message of an INVITE request will be 60ms because each G.723 voice frame |
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| contains 30ms of audio. Similarly, if this field is set to 2 and the first codec is G.729 or |
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| G.711 or G.726, then the “ptime” value in the SDP message of an INVITE request will be |
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| 20ms. |
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| If the configured voice frames per TX exceeds the maximum allowed value, the IP phone |
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| will use and save the maximum allowed value for the corresponding first codec choice. |
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| The maximum value for PCM is 10 (x10ms) frames; for G.726, it is 20 (x10ms) frames; |
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| for G.723, it is 32 (x30ms) frames; for G.729/G.728, 64 (x10ms) and 64 (x2.5ms) frames |
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| respectively. |
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| Please be careful when editing these parameters. Adjusting these parameters will also |
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| change the dynamic jitter buffer. The |
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| handling algorithm. The jitter buffer range is 20 ~ 200 ms. |
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| Grandstream recommends using the default settings provided. Grandstream does not |
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| recommend adjusting these parameters if you are an average user. Incorrect settings |
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| will affect the voice quality. | Please refer to the Codec FAQ at |
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| http://www.grandstream.com/faqscodec.html for more technical detail. |
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| Layer 3 QoS |
| This field defines the layer 3 QoS parameter. It is the value used for IP Precedence or |
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| Layer 2 QoS |
| This contains the value used for layer 2 VLAN tag. Default setting is blank. |
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| No Key Entry |
| Default is 4 seconds. |
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| Timeout |
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| Use # as |
| This parameter allows users to configure the “#” key as the “Send” (or “Dial”) key. If set |
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| Dial Key |
| to “Yes”, the “#” key will immediately send the call. | In this case, this key is essentially |
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| equivalent to the “(Re)Dial” key. If set to “No”, the “#” key is included as part of the dial |
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| string. |
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| Grandstream Networks, Inc. | Page 25 of 33 |
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| Firmware 1.1.4.3 |
| Last Updated: 05/2007 |
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