![]() ![]() And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. – The free-running keyword specifies a free-running clock derived from the oscillator on the motherboard, which is used only for testing and back-to-back connections.ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. With independent clocking enabled, this dependency no longer exists, so the independent keyword means that both ports can be independently clocked. Port 0 is the default primary clock source, and port 1 is the default secondary clock source and is loop-timed. – The independent keyword expands on the clock source internal and clock source line to specify that the port can operate on an independent clocking domain. – The optional keywords primary and bits appear in the command-line interface, but they have no impact on this particular configuration. – If both ports are set to clock source internal, there is only one clock source-internal. If it is down, then the internal port generates its own clock. – If one port is set to clock source line and the other is set to clock source internal, the internal port recovers clock from the clock source line port if the clock source line port is up. – When both ports are set to line and one port is set as the primary clock source, the other port is by default the backup or secondary source and is loop-timed. When both ports are set to line clocking with no primary specification, port 0 is the default primary clock source and port 1 is the default secondary clock source.Router(config-controller)# clock source line independent This is not valid for analog voice ports. Note This procedure to change codec complexity applies only to T1 and E1 controllers. Enter the voice-card slot command, and then change the codec complexity. Remove the DS0 group or PRI group under the T1 or E1 controller.ģ. Shut down the voice port associated with the controller.Ģ. If they are already set up, follow these steps:ġ. You cannot change codec complexity while DS0 groups are defined.If you select a codec that is not available, an error message appears. The keyword that you specify for the codec complexity command affects the codecs available when you use the codec dial peer voice configuration command. ![]() Note All medium-complexity codecs are supported in high-complexity codecs. medium -Up to eight voice or fax calls can be completed per DSP, using the following codecs: G.711, G.726, G.729 Annex A, G.729 Annex B with Annex A, GSMFR, and fax relay.Note High-complexity codecs support lower call density than do medium-complexity codecs. high -Up to six voice or fax calls can be completed per DSP, using the following codecs: G.711, G.726, G.729, G.729 Annex B, G.723.1, G.723.1 Annex A, G.728, and GSMEFR.– reservation-fixed-Not applicable to the VWIC or the T1/E1 VIC. If this is true, then the reservation-fixed option may be enabled. In this mode, reservation for analog Voice Interface Cards (VIC) may be needed for certainĪpplications such as CAMA E-911 calls because The number of supported calls varies from 6 to 16, depending on the codec used for a call. flex -Up to 16 calls can be completed per Digital Signal Processor (DSP).Specifies the codec complexity based on the codec standard you are using. Router(config-voicecard)# codec complexity flex ![]()
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