06-18-2008 05:10 AM - edited 03-05-2019 11:42 PM
Hi.
Is it possible to connect between two routers using their E%M interfaces and ping through the routers between two PCs (the ethernet interfaces do have ip addresses)?
Thank you.
Solved! Go to Solution.
06-18-2008 05:41 AM
Hi Danny,
Never tried this but looks like you can do this.
Here's what mentioned in one of the cisco document -
"The Cisco analog E&M interface functions as the signaling unit side and it expects the other side to be a trunk circuit. When you use E&M interface models Type II and Type V, two signaling unit sides can be connected back to back by the appropriate crossing of the signaling leads. When you use E&M Type I interfaces, two signaling unit sides cannot be connected back to back." -
http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080093f60.shtml
This link talks about the wiring -
http://www.cisco.com/en/US/products/hw/gatecont/ps2250/products_tech_note09186a008009452e.shtml
Goold luck mate.
-> Sushil
06-18-2008 05:42 AM
In short, no.
The E&M interfaces allow for analog telephony connectivity and does not support digital layer 3, or layer 2 addressing so pushing digital packets through them can not work.
An E&M interface connects the cisco device to a telephony trunk with analog signaling for communication to a connected analog interface such as that in a PBX or telco.
The links mentioned in the above post will clearly explain what E&M can do and pushing packets is not possible.
06-18-2008 05:45 AM
Danny/Greg,
I overlooked PC to PC communications.
Not possible Danny.
-> Sushil
06-18-2008 09:48 PM
E&M is a form of analog telephone circuit used for PBX trunks. Not suitable for packet-based data communication. With the proper wiring you could use two E&M circuits back-to-back as a voice link for telephony.
Not suitable for IP, however.
06-18-2008 05:41 AM
Hi Danny,
Never tried this but looks like you can do this.
Here's what mentioned in one of the cisco document -
"The Cisco analog E&M interface functions as the signaling unit side and it expects the other side to be a trunk circuit. When you use E&M interface models Type II and Type V, two signaling unit sides can be connected back to back by the appropriate crossing of the signaling leads. When you use E&M Type I interfaces, two signaling unit sides cannot be connected back to back." -
http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080093f60.shtml
This link talks about the wiring -
http://www.cisco.com/en/US/products/hw/gatecont/ps2250/products_tech_note09186a008009452e.shtml
Goold luck mate.
-> Sushil
06-18-2008 05:42 AM
In short, no.
The E&M interfaces allow for analog telephony connectivity and does not support digital layer 3, or layer 2 addressing so pushing digital packets through them can not work.
An E&M interface connects the cisco device to a telephony trunk with analog signaling for communication to a connected analog interface such as that in a PBX or telco.
The links mentioned in the above post will clearly explain what E&M can do and pushing packets is not possible.
06-18-2008 05:45 AM
Danny/Greg,
I overlooked PC to PC communications.
Not possible Danny.
-> Sushil
06-21-2008 11:14 PM
Thank you.
Danny.
06-18-2008 09:48 PM
E&M is a form of analog telephone circuit used for PBX trunks. Not suitable for packet-based data communication. With the proper wiring you could use two E&M circuits back-to-back as a voice link for telephony.
Not suitable for IP, however.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide