CISCO-SPA112 Setup Guide

[Jake]

Credits to Val, thank you for your help.

The attached PDF will help you set up your SPA112 device from scratch. It is a known working configuration so if you are having troubles with your SPA112 reset back to defaults and follow this guide.

Edit: 1.Navigate to Voice-->SIP tab-->SIP Timer Values (sec)-->Reg Retry Intvl should be 120 seconds
https://support.freephoneline.ca/hc/en- ... redentials

2. (Do what Mango wrote below.)
In your SPA112 ATA, navigate to Voice-->SIP tab-->NAT Support Parameters, and make sure that the following settings are enabled:

a)Handle VIA received-->yes
b)Handle VIA rport-->yes
c)Substitute VIA Addr-->yes

3. In your SPA112 ATA, navigate to Voice-->Line 1 (or whatever Line you're using for FPL)-->SIP settings, and change SIP Port to a random number between 30000 and 60000. Do this for security reasons (to help avoid SIP Scanners/hackers). Also, this step may help to temporarily address a corrupted NAT association that's developed between a router and ATA (if you're having registration issues, try selecting a new random port number in this range, and then reboot the ATA. If that works, you were dealing with a corrupted/stale NAT association in your router).

4. In your ATA, navigate to Voice-->Line (whichever you use for FPL)-->Supplementary Service Subscription-->Block CID Serv:
a) change to no
b) Click "submit"

Having Block CID Serv enabled was a reported issue with SPA112s dropping calls after 15 minutes with FPL.

[Mango]

To prevent one-way or no audio with the new FPL switches, set the following from within Voice >> SIP:

Handle VIA received: yes
Handle VIA rport: yes
Substitute VIA Addr: yes

[daman101]

I'm still having major problems with voice on one side only.
It doesn't always happen, but about 9/10 tries result in either me not hearing the other person or vice versa. I've followed this guide as well as applied the VIA settings.

Are there any other tweaks I can try? My firmware is up to date too and I also tried completely wiping my settings and following this guide.

Thanks!

[Mango]

I replied in the other thread you posted in: viewtopic.php?f=8&t=15120&p=70738#p70738

[tinky41]

thanks... It's work great !!!!

[thanhdo]

Can someone place the set up for cisco spa122 please

[Mango]

viewtopic.php?f=15&t=16340

[Liptonbrisk]

Latest ATA firmware is found here: https://www.cisco.com/c/en/us/support/u ... -downloads.

I don't know whether this T1 bug has been fixed in the latest firmware for SPA112/SPA122 ATAs: https://community.cisco.com/t5/atas-gat ... -p/1930651.
Basically firmwares were using 10% of the value for T1 that was listed.

a) If that bug still exists, navigate to Voice-->SIP-->SIP Timer Values-->T1
Change SIP T1 to 10.

b) If that bug doesn't exist, change SIP T1 to 1.

For an explanation of this issue, visit http://www.dslreports.com/forum/r294151 ... SIP-T1-bug, and read Mango's posts, in particular http://www.dslreports.com/forum/r29451649-.

[Liptonbrisk]

Firewalls are important. UPnP can be bad. Port forwarding, unless there's no other choice, is bad. DMZ is worse.

"Dump these insecure phone adapters because we're not fixing them, says Cisco"
https://www.theregister.com/AMP/2023/05 ... rabilitty/


https://sec.cloudapps.cisco.com/securit ... de-UqhyTWW