FXS with Gatekeeper

[kevin_reynolds]

Hopefully this will be easy. I have 3725 with a VIC-4FXS/DID voice port. I also have a VOIP network that runs on H323 with gatekeeper (no call manager). I just want to connect an analog telephone to the FXS port and have it able to dial and receive calls from any other IP phone on the network.

Here are my configs that do not work:

int fa0/0

ip address a.b.c.d 255.255.255.0

h323-gateway voip interface

h323-gateway voip id myZone ipaddr w.x.y.z 1719

h323-gateway voip h323-id myNode@domain.com

dial-peer voice 20 voip

destination-pattern 5..

session target ras

dial-peer voice 21 pots

destination-pattern 550

port 2/1/0

I get a dial tone but only busy signals when I call to and from 550. The gatekeeper also does not show a registration from the router.

Thanks,

Kevin

[nmilojevic]

Hi!

There are a few things you could try:

Add following command to GW h323 interface:

h323-gateway voip tech-prefix 1#

I am not sure why, but it often seems to help.

Furthermore, you didn't write anything about GK config. Make sure it is also OK. (if you don't see GW registered with GK, something for sure isn't right)

Also, you dial-peers; I would have them different (I don't like to mix incoming and outgoing traffic on one peer). You could make two sets of peers - pots/voip when analog calls out and another voip/pots pair when some IP phone calls to analog phone. Troubleshooting gets easier.

Try using "incoming called-number" command for incoming peer.

Regards,

Nikola

[rnarayana]

Hello,

If you have one router with FXS and the other router is the GK you need the following configs.

Gateway:

int fa0/0

h323-gateway voip interface

h323-gateway voip id

h323-gateway voip h323-id

h323-gateway voip tech-prefix 1#

gateway ---- This is important for the gateway to

register to GK

On the GK

gatekeeper

zone local

zone prefix 5..

gw-type-prefix 1#* default-technology.

no shut

I hope this helps.

Thanks,

Radhika

[kevin_reynolds]

I left out the gateway statement. Thanks for the help.

Kevin