[cisco-voip] IP Phones + MGCP FXS + Shared Lines

Ryan Huff ryanhuff at outlook.com
Fri Dec 22 12:12:50 EST 2017


Yeah, what Cisco is not saying in this passage is that it won’t work; they just recommend that you don’t do it.

Sent from my iPhone

On Dec 22, 2017, at 11:57 AM, Anthony Holloway <avholloway+cisco-voip at gmail.com<mailto:avholloway+cisco-voip at gmail.com>> wrote:

That seems to be it Bill.  Now, since I was looking for documentation to support my theory that it's not supported, I do read that in my favor (confirmation bias).  Does anyone else care to share their perspective on what that passage might actually not be saying?

On Thu, Dec 21, 2017 at 7:08 PM Bill Talley <btalley at gmail.com<mailto:btalley at gmail.com>> wrote:
Not sure if the screenshot came through... another attempt.

<mgcpsl.png>
​

On Thu, Dec 21, 2017 at 7:05 PM, Bill Talley <btalley at gmail.com<mailto:btalley at gmail.com>> wrote:
How about this?  It's the closest I've seen to what you're asking about.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmsys/CUCM_BK_SE5FCFB6_00_cucm-system-guide-100/CUCM_BK_SE5FCFB6_00_cucm-system-guide-100_chapter_010001.html#CUCM_RF_S05975F9_00

[cid:]



On Mon, Dec 18, 2017 at 4:48 PM, Anthony Holloway <avholloway+cisco-voip at gmail.com<mailto:avholloway+cisco-voip at gmail.com>> wrote:
No unfortunately, just gotta play the cards dealt on this one.

Actually, I'm not interested in changing anything, I'm looking for documentation that supports what these two Cisco employee have publicly stated.  I personally will only cite sources from official documentation, and not from web forums, regardless of who posted it.  Because, at the end of the day, that employee can be wrong, and Cisco does not have to take responsibility for the infraction.  However, in documentation they do.  Either they fix the documentation, or they fix the technology.

On Sat, Dec 16, 2017 at 4:00 PM Lelio Fulgenzi <lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>> wrote:

Looks like the thread points you to sccp controlled fxs ports. I'm sure you have your reasons for wanting MGCP. Curious what those are.

Could you get away with ATAs?

Sent from my iPhone

On Dec 16, 2017, at 1:50 AM, Anthony Holloway <avholloway+cisco-voip at gmail.com<mailto:avholloway+cisco-voip at gmail.com>> wrote:

Does anyone have current information on whether or not MGCP FXS ports can be on shared lines with Cisco IP Phones?

No anecdotal or empirical evidence please.  I'm looking for documented facts, preferably the kind that doesn't require re-reading it like 10 times to come up with your own interpretation.

Check out what the two Cisco Employees are saying in this thread from 2010 (Spoiler - It's not supported)

https://supportforums.cisco.com/t5/ip-telephony/shared-line-between-ip-phones-and-fxs-port-with-sccp-setup/td-p/1045431

Are you a Cisco employee who likes to stick your neck out for internet strangers, and also believe this to be unsupported?  Please contact me.  Or not.  I'm not crying.
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