Is Webex PSTN Gateway sip connection SBC Featured?

[ohchan]

Hi

I am trying to build Webex calling.

When it is necessary to link the head office and branch with SIP,

Can the PSTN perform the SBC function?

PSTN - PSTN_GW - Webex Calling
                    l
      Branch(SIP connect)

[Stoyan Stoitsev · Accepted solution]

PSTN - PSTN_GW - Webex Calling
                    l
      Branch(SIP connect)

This is possible but rather complicated. I'd recommed you to get in contact with an experienced Cisco Partner company in your area. Having Internet SIP trunks and PSTN on the same device can be really dangerous if done wrong.

You can check this document and specifically the part that describes your case 

• Configure Local Gateway with an Existing Unified CM Environment - The local gateway deployment option within an existing Unified CM environment. The local gateway and IP PSTN CUBE are coresident.

https://help.webex.com/en-US/article/jr1i3r/Configure-Local-Gateway-on-IOS-XE-for-Webex-Calling#id_101131

But once again, this can be really dangerous and wouldn't recommend to do it alone if you don't have experience with this.

[Nithin Eluvathingal]

What gateway you use ?

Could you please explain a little more about your setups and requirement ?

[ohchan]

The equipment

We plan to purchase a module for cisco router and use it as a PSTN gateway.

Can branch office equipment and SIP be connected through PSTN gateway?

The customer asks if the SBC equipment needs to be purchased separately.