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Which PTSN connection usually uses common channel signaling and Signaling System 7 technology?
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∙ 11y ago
A connection between two exchanges connection
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∙ 11y ago
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What type of signaling transmits call setup on the same channel as a voice signal?
In-Band Signaling (IBS)
What is In- channel signaling?
In-channel signaling is also often referred to as in-band signaling. See http://en.wikipedia.org/wiki/Signalling_(telecommunications)#In-Band_versus_Out-Of-Band and http://en.wikipedia.org/wiki/In-band_signaling.The signaling used to establish and tear down a phone call was located in the same physical communication channel used to carry the call (i.e voice, fax or modem) traffic, and used DTMF tones. Examples are CCITT Signaling Systems 1-5 R1 & R2. Most books on SS7 should talk briefly about this.SS6 & SS7 moved to take the signaling out-of band, and to establish a common channel for all signaling in digital packet-based format (non-tone based) allowing one signaling channel to control a large number of "voice" circuits.
What is signal?
In telephony, signaling is the exchange of information between involved points in the network that sets up, controls, and terminates each telephone call. In in-band signaling , the signaling is on the same channel as the telephone call. In out-of-band signaling , signaling is on separate channels dedicated for the purpose.
Channel associated signaling?
provide information of the trunk itself carry on trunk....
What are the disadvantages of common channel signaling?
•CCS links can be a single point of failure •No inherent testing of speech path by call setup signaling •CCS response time is critical
What is the difference between in channel and common channel signaling?
One signaling path needed per trunk groupFaster and simpler to transfer information between control processorsNo possibility of interference with speech pathSignaling can't be accessed by customer.Value-added services of a signaling control pointShared processing for small officesAllows centralized decision making (flow mgmt)Permits Advanced Intelligent Network (AIN) services
Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of ions on opposite sides of the membrane?
Ligand-gated ion channel
Binding of a signaling molecule to which type of receptor leads directly to a change in distribution of ions on opposite sides of the membrane?
ligand gated ion channel
What is a telecommunications network protocol?
is the set of standard rules for data representation, signaling, authentication and error detection required to send information over a communications channel
How can you provide for signaling when using a 24B T1 primary rate interface configuration?
By using a D channel on another PRI across the same user network interface
Synaptic signaling between adjacent neurons is like hormone signaling in which way?
Nerves communicate at specialized cell junctions known as synapses. In response to some stimuli, in many cases an action potential, the pre-synaptic nerve releases signal molecules into the space between the two cells (the synaptic cleft). The signaling molecule is then bound by a receptor on the post-synaptic neuron. In this fashion "instructions" can be communicated between neurons. Generally binding of the messenger signal leads to the opening of an ion channel in the post-synaptic nerve causing that nerve to either become more or less excited. In the case of more excited the post-synaptic neuron will approach being able to fire its own action potential if it is excited enough.
A digital signaling system is required to operate at 9600 bps If a signal element encodes a 8-bit word what is the minimum required bandwidth of the channel?
answer in www.ent.mrt.ac.lk/~ekulasek/cni/cni4-eck.ppt last slide
