About Michael Mertens

Michael Mertens · 04-17-2023

I'm adding a 2nd SIP trunk to SBC/CUBE and am testing with the Test DID. I have outbound calls working but not inbound...I never see the INVITE because I'm not sending SIP 200 OKs in response to the carrier's SIP OPTIONS PING. What do I need in the C...

Michael Mertens · 03-15-2023

Hello All,I'm looking to understand some mechanics of SIP and PAI here, as I don't think my problem is a Cisco/CUBE configuration but rather something with the FW doing NAT and needing Application Bypass configuration(s). Topology: Inside VoIP networ...

Michael Mertens · 01-30-2023

Hello, I'm trying to provision a 2nd trunk with AT&T on a Cisco CUBE. Outbound calls work on trunk#2 but inbound calls on trunk#2 to the test number gets disconnect 404. The Test Number (TN) is 845-592-6506, which gets translated to 26506 and sent to...

Michael Mertens · 01-05-2023

I have a new CUCM 14.5 cluster that was setup recently without DNS enabled, nor a domain defined. It is primarily used for down-and-dirty wifi phone calls on campus. Anyway, I now have a need to get Jabber working for softphone functionality. Jabber ...

Michael Mertens · 11-04-2022

I have an existing CUBE with a functioning SIP trunk. I am provisioning a 2nd SIP trunk on the CUBE and am trying to test outbound calling on that new SIP trunk by creating a new/temporary dial-peer (dialpeer 210) with a destination-pattern of my cel...

Michael Mertens · 04-19-2023

Roger, I really, really, really appreciate your input and solution!!!! This fixed my immediate problem, and I now answer to the PINGs from the IPBE with that incoming dial-peer (who is bound to the correct interface). This also has opened up an entir...

Michael Mertens · 04-18-2023

Roger, your DOC was very comprehensive and I don't believe I've come across that before,So after further debugs and comparing it to a working site and looking at the packet capture, I see that the CUBE is indeed responding to the Out-of-Dialogue OPTI...

Michael Mertens · 04-18-2023

Roger, Thanks for your input...every day I learn how little I know about SIP- What is the VIA header, and what/how do I match a dial-peer to it? You are right, that I'm matching the inbound call lef with the incoming called-number and that is bound t...

Michael Mertens · 03-16-2023

B. Winter, I left the outgoing calls outgoing-leg out of the config I posted because outgoing works. Please see below for the outgoing dial-peer. NOTE: This is only to test/validate the functionality for outgoing calls.!dial-peer voice 299 voipdescri...

Michael Mertens · 03-15-2023

B.Winter,Trunk A has two different IPBEs from Trunk B. In the FW, its NAT rule states: "if destined to Trunk A IPBEs, use NAT address 32.253.23.162. If the packet is destined to trunk B IPBEs, then use NAT address 32.253.59.194."The configuration for...

Member Since	‎06-21-2011 08:33 AM
Date Last Visited	‎04-21-2023 12:06 AM
Posts	128
Total Helpful Votes Received	25

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What Is Required On SBC/CUBE To Respond To Carrier's SIP Options PING?

SIP P-Asserted-Identity of Other SIP Trunk's NATed Address

Call Disconnect 404 on New AT&T SIP Trunk for Inbound Calls

Jabber Client with CUCM 14 Without DNS Enabled/Domain Name Defined

Why Dial Peer Isn't Being Matched

Re: What Is Required On SBC/CUBE To Respond To Carrier's SIP Options P

Re: What Is Required On SBC/CUBE To Respond To Carrier's SIP Options P

Re: What Is Required On SBC/CUBE To Respond To Carrier's SIP Options P

Re: SIP P-Asserted-Identity of Other SIP Trunk's NATed Address

Re: SIP P-Asserted-Identity of Other SIP Trunk's NATed Address