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These settings are shown for a H.323 IP extension.
These settings are not mergeable. Changes to these settings will require a reboot of the system.
Field | Description |
---|---|
IP Address |
Default = 0.0.0.0
The IP address of the phone. The default setting accepts connection from any address. For phones using DHCP, the field is not updated to show the IP address being used by the phone. For T3 IP phones installed using DHCP, the address obtained and being used by the phone is displayed. If that address is from the same range as the DHCP pool being supported by the IP Office system, Manager will indicate an error. The IP Address field can be used to restrict the the source IP address that can used by a Remote H.323 Extension. However, it should not used in the case where there is more than one remote extension behind the domestic router. |
MAC Address |
Default = 0000000000000 (Grayed out)
This field is grayed out and not used. |
Codec Selection |
Default = System Default This field defines the codec or codecs
offered during call setup.
The available codecs in default preference order are: G.711 A-Law, G.711 U-Law, G.729 and G.723.1. Note that the default order for G.711 codecs will vary to match the system's default companding setting. G.723.1 is not supported on Linux based systems. The G.722 64K codec is also supported on IP500/IP500 V2 systems with IP500 VCM, IP500 VCM V2 or IP500 Combo cards. For Server Edition it is supported on Primary Server, Secondary Serverand Expansion System (L) systems and on Expansion System (V2) systems fitted with IP500 VCM, IP500 VCM V2 or IP500 Combo. The codecs available to be used are set through the System Codec list (System | System Codec). The options are:
|
TDM | IP Gain |
Default = Default (0dB). Range = -31dB to +31dB.
Allows adjustment of the gain on audio from the system TDM interface to the IP connection. This field is not shown on Linux based platforms. |
IP | TDM Gain |
Default = Default (0dB). Range = -31dB to +31dB.
Allows adjustment of the gain on audio from the IP connection to the system TDM interface. This field is not shown on Linux based platforms. |
Supplementary Services |
Default = H450.
Selects the supplementary service signaling method for use with non-Avaya IP devices. Options are None, QSIG and H450. For H450, hold and transfer are supported. Note that the selected method must be supported by the remote end. |
Media Security |
Default = Disable.
These settings control whether SRTP is used for this extension and the settings used for the SRTP. The options are:
|
Advanced Media Security Options |
Not displayed if Media Security is set to Disabled. The
options are:
|
VoIP Silence Suppression |
Default = Off
When selected, this option will detect periods of silence on any call over the line and will not send any data during those silent periods. This feature is not used on IP lines using G.711 between systems. On trunk's between networked systems, the same setting should be set at both ends. |
Enable FastStart for non-Avaya IP Phones |
Default = Off
A fast connection procedure. Reduces the number of messages that need to be exchanged before an audio channel is created. |
Out of Band DTMF |
Default = On
When on, DTMF is sent as a separate signal ("Out of Band") rather than as part of the encoded voice stream ("In Band"). The "Out of Band" signaling is inserted back into the audio by the remote end. This is recommended for low bit-rate compression modes such as G.729 and G.723 where DTMF in the voice stream can become distorted. Switch off for T3 IP extensions. For Avaya 1600, 4600, 5600 and 9600 Series phones, the system will enforce the appropriate setting for the phone type. For Avaya T3 IP phones, when Out-Of-Band is unchecked, the Allow Direct Media Path option is ignored and calls are via the system in order to provide tones. |
Local Tones |
Default = Off
When selected, the H.323 phones generate their own tones. |
Allow Direct Media Path |
Default = On
This settings controls whether IP calls must be routed via the system or can be routed alternately if possible within the network structure. If enabled, IP calls can take routes other than through the system. This removes the need for a voice compression channel. Both ends of the calls must support Direct Media and be using the same protocol (H.323 or SIP). Enabling this option may cause some vendors problems with changing the media path mid call. If disabled or not supported at on one end of the call, the call is routed via the system. RTP relay support allows calls between devices using the same audio codec to not require a voice compression channel. T3 IP phones must be configured to 20ms packet size to use RTP relay. The phone must have firmware T246 or higher. |
Reserve License |
Default = None. Each Avaya IP phones requires an Avaya IP Endpoint
license. Each non-Avaya IP phones requires an 3rd Party IP Endpoint
license. Normally these licenses are issued in the order that devices
register. This option allows this extension to be pre-licensed before
the device has registered. This helps prevent a previously licensed
phone becoming unlicensed following a system restart if unlicensed
devices are also present. The options are:
Note that when WebLM licensing is enabled, this field is automatically set to Reserve Avaya IP Endpoint License. The Both and None options are not available. |