ā12-19-2013 12:46 AM - edited ā03-16-2019 08:56 PM
Hi guys.
We have a current requirement that has the following specifications.
Minimum of 20 Analog trunks, 1 x E1 PRI ISDN trunk, with SIP license (60 licenses), with IVR, call data recording
I have configured a 2911 with the appropriate licenses in CCW. But, how can I come up with a solution for 20 analog trunks? I am not yet familiar with this.
Thanks in advance.
Solved! Go to Solution.
ā12-19-2013 03:01 AM
EVM-HD-8FXS/DID High density voice/fax extension module -8 FXS/DID
EVM-HD-8FXS/DID
The Cisco High-Density Extension Module for voice and fax
has 8 FXS and DID ports. Individual ports on the basebo
ard
module can be configured for FXS or DID signaling. Adj
acent ports should share the same configuration to avoid i
mpedance
setting conflicts. A change to the impedance setting for o
ne port, changes the setting on the adjacent port. Pair
ed ports are: 0
and 1; 2 and 3; 4 and 5; 6 and 7.
An on-premises FXS interface connects directly to a standar
d telephone, fax machine, or similar device and supplies
ring,
voltage, and dial tone. Signaling support available in
FXS mode includes loop-start and ground-start. DID tru
nks from the
central office can be connected to the Cisco High-Density E
xtension Module baseboard for off-premises connections.
Signaling support available in DID mode includes immedi
ate, delay dial, and wink start.
Users plug in up to two expansion modules in any combina
tion to increase the voice and fax capacity of the Cisco Hi
gh-
Density Extension Module baseboard.
or
EM3-HDA-8FXS/DID 8-port voice/fax expansion module-FXS/DID
EM3-HDA-8FXS/DID
This 8-port FXS/DID Voice and Fax Expansion Module pro
vides on-premises FXS signaling to connect directly to a sta
ndard
telephone, fax machine, or similar device and supplies ri
ng, voltage, and dial tone. Signaling support availabl
e in FXS mode
includes loop-start and ground-start. This expansion modu
le also works with the Cisco High-Density Analog Voice an
d Fax
Network Module (part number NM-HDA-4FXS).
DID trunks from the central office can be connected to t
he Cisco Voice and Fax Expansion Module for off-premises
connections. Signaling support available in DID mode incl
udes immediate, delay dial, and wink start. It support
s up to eight
ports in DID mode, both expansion slots combined (with ei
ght DIDs on EVM baseboard, up to 16 DIDs maximum).
Additionally, it supports robust front end protection.
ā12-19-2013 09:41 PM
Both modules are 8 ports each, you will need more or less 3 of them per router whick = 24 ports.
ā12-19-2013 01:47 AM
Analog trunk circuits connect automated systems, such as a private branch exchange (PBX) and the network such as a central office (CO). The most common form of analog trunking is the E&M interface. E&M Signaling is commonly referred to as "ear & mouth" or "recEive and transMit", but its origin comes from the term earth and magnet. Earth represents electrical ground and magnet represents the electromagnet used to generate tone.
E&M signaling defines a trunk circuit side and a signaling unit side for each connection similar to the data circuit-terminating equipment (DCE) and data terminal equipment (DTE) reference type. Usually the PBX is the trunk circuit side and the Telco, CO, channel-bank, or Cisco voice enabled platform is the signaling unit side.
Here is the link for analog trunk
http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080093f60.shtml
Br,
Nadeem
Please rate all useful post.
ā12-19-2013 02:52 AM
Thanks for the reply Nadeem.
So what module option can you suggest so I can enable 20 analog trunks for the 2911?
ā12-19-2013 03:01 AM
EVM-HD-8FXS/DID High density voice/fax extension module -8 FXS/DID
EVM-HD-8FXS/DID
The Cisco High-Density Extension Module for voice and fax
has 8 FXS and DID ports. Individual ports on the basebo
ard
module can be configured for FXS or DID signaling. Adj
acent ports should share the same configuration to avoid i
mpedance
setting conflicts. A change to the impedance setting for o
ne port, changes the setting on the adjacent port. Pair
ed ports are: 0
and 1; 2 and 3; 4 and 5; 6 and 7.
An on-premises FXS interface connects directly to a standar
d telephone, fax machine, or similar device and supplies
ring,
voltage, and dial tone. Signaling support available in
FXS mode includes loop-start and ground-start. DID tru
nks from the
central office can be connected to the Cisco High-Density E
xtension Module baseboard for off-premises connections.
Signaling support available in DID mode includes immedi
ate, delay dial, and wink start.
Users plug in up to two expansion modules in any combina
tion to increase the voice and fax capacity of the Cisco Hi
gh-
Density Extension Module baseboard.
or
EM3-HDA-8FXS/DID 8-port voice/fax expansion module-FXS/DID
EM3-HDA-8FXS/DID
This 8-port FXS/DID Voice and Fax Expansion Module pro
vides on-premises FXS signaling to connect directly to a sta
ndard
telephone, fax machine, or similar device and supplies ri
ng, voltage, and dial tone. Signaling support availabl
e in FXS mode
includes loop-start and ground-start. This expansion modu
le also works with the Cisco High-Density Analog Voice an
d Fax
Network Module (part number NM-HDA-4FXS).
DID trunks from the central office can be connected to t
he Cisco Voice and Fax Expansion Module for off-premises
connections. Signaling support available in DID mode incl
udes immediate, delay dial, and wink start. It support
s up to eight
ports in DID mode, both expansion slots combined (with ei
ght DIDs on EVM baseboard, up to 16 DIDs maximum).
Additionally, it supports robust front end protection.
ā12-19-2013 04:39 PM
Hi Hermanus.
Thanks for the response. Just to clarify, any of the modules you have mentioned can support 20 analog trunks? Correct?
ā12-19-2013 09:41 PM
Both modules are 8 ports each, you will need more or less 3 of them per router whick = 24 ports.
ā12-19-2013 04:34 AM
What is the far end with which you are making Analog trunk ? You would need to check with far end what kind of analog trunk they want and according to that you would get the appropriate module..
Br,
Nadeem
Please rate all useful post.
ā12-19-2013 04:37 PM
Thanks for the response Nadeem. Can you please inform me what are the possible types of "far end" of the analog trunk that is possible? So I can ask our client the proper questions.
Thanks in advance.
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