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28 Cards in this Set
- Front
- Back
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Name the two different interconnect model?
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- Intra domain; SuperPop, SNARC, VOIP IMT's
- Inter domain; VoipLink (Nextone), FTGB VOIP |
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What is the capacity in DS0 of a GWY AS 5300?
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120 DS0
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What is the capacity in DS0 of a GWY AS 5350?
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210 DS0
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What is the capacity in DS0 of a GWY AS 5400?
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380 DS0
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What is an APC or PDU?
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It's a power distribution unit used to remotely power down the gateways devices.
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What are the 3 functions of the VoIP components PGW2200?
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-It's a sun server that runs the signal control software that provides centralized signaling and call processing services for multiple Cisco VOIP gateways
-It converts the SS7 ISDN User part (ISUP) messages to Extended Q.931 messages -It transport the Q.931 over IP to the Gateway |
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Gatekeeper functions?
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- Address translation
- Network Access control - Gateway must register with gatekeeper before any calls can be set up. |
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Teleglobe consist of 3 voip models?
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SuperPOP, SNARC and VOIPLINK
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VoIP IMT's are used for what?
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To facilitate exchanging traffic between Teleglobe and ITXC
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The most common signaling protocols deployed between the customer switch and the GW are ?
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ISDN and SS7
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The calls are routed to the GW's to the terminating provider over IP....
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Using H.323 or SIP signaling
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If the customers connect to TGB via TDM to what equipment do they connect to?
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-Excel
-Gateway |
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If the customers connect to TGB via IP to what equipment do they connect to?
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Nextone
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What is a trunk group?
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A group of T1's
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F-ITXC and F-TGO are interconnected via what?
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SNARC INTERCO = this is really group of gateways managed by a pair of PGW's
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What is a point code?
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It's the identification of a switch.
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What is an F-Link?
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It's when one of the DS0 is used to carry signaling
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What is an STP?
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It's like a router for point code.
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List the elements implicated between a GSP and a GW
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GSP ---> STP --> STL ---> PGW then to GW
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What does the STL?
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- It terminates the physical interfaces
- Encapsulate the SS7 packets into IP so the PGW can receive it. |
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How does the Gateway decide to what IP address to send the call?
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Query sequence ......
Gateway --> Zone Gatekeeper --> directory Gatekeeper ---> Router Server to AI |
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The protocol GKTMP is used for what?
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To allow communication between Router Server and Directory Gatekeeper
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What does the router server provides?
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Call routing information for the VoIP network
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AI feeds what?
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The Route Server with dial plan information every hours
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The Gateway or the Nextone ask the Route server for what?
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-The IP address of the terminating Gateway or Softswitch.
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What is a span?
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An E1 or a T1
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Name the naming convention abbreviation used for a Gateway, SLT and PGW respectively in a SNARC scenario
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- Gateway is referred to has customer nameC#,
-SLT as slt -PGW as sc |
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In the SuperPOP scenario, what is the naming convention used for Gateway, Gatekeeper, SLT, PGW, Radius and Nextone.
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-GW= csc
-GK = CKC -SLT = SLT -PGW = SCT -Radius = CRC -Nextone = MSC |
