The message below was posted to the list back in April of this year. Has
anyone experimented or made any progress getting an IOS gateway to translate
between H323 and SIP? My SIP phones are connected to an Asterisk server,
which has a SIP trunk to a Cisco IOS gateway. My SCCP phones are connected
to a Callmanager server, which has an H323 connection to the same Cisco IOS
gateway. I am trying to allow the phones to call each other.
SIP Phones -- Asterisk -- SIP/Cisco IOS Gateway/H323 -- Callmanager -- SCCP
Phones
Other options/suggestions are of course welcomed and appreciated.
Thanks in advance,
Mike
------------------------
Cisco Gateways can act as SIP User Agents (endpoints, basically).
I don't know that they would be able to translate from an inbound SIP
request to H323 well, as that would be a "Voip hairpin" - something the
routers couldn't do until the very latest 12.3 code. I've never tried this
code so I can't say it will work.
I'm assuming it'd look something like this:
Service Provider -> Network connection -> your gateway -> CallManager
In this case, with 12.3 code, you could make a VoIP Peer with a SIP session
target, and an H323 Voip Peer with CallManager as the target. As I said,
this is supposed to work in the very latest 12.3, I couldn't say if it does,
or how well it might work (my 12.3 experiences have all been very bad so
far).
________________________________
From: cisco-voip-bounces at puck.nether.net
<https://puck.nether.net/mailman/listinfo/cisco-voip> on behalf of medley
at mac.com <https://puck.nether.net/mailman/listinfo/cisco-voip>
Sent: Fri 4/2/2004 4:03 PM
To: cisco-voip at puck.nether.net
<https://puck.nether.net/mailman/listinfo/cisco-voip>
Subject: [cisco-voip] SIP Gateway and CCM
I know that CCM 3.3(x) doesn't support SIP natively; I'll have to wait for
CCM 4.0(x) for native SIP trunking.
For now, can I use an IOS gateway to translate between H323 and SIP? I'm
thinking CCM connects to an IOS H323 GW. The IOS H323 GW connects to a SIP
Gateway.
We are looking at connecting to another service provider that really wants
us to use SIP instead of H323 to connect to their gateways.
tm
________________________________________________
Tim Medley
Appia Communications
(231) 929-0970 x112
(704) 905-4604 cell
aim: macmedley01
medley at appiaservices.com
<https://puck.nether.net/mailman/listinfo/cisco-voip>
You can now call our Support Line 877-277-4297
anyone experimented or made any progress getting an IOS gateway to translate
between H323 and SIP? My SIP phones are connected to an Asterisk server,
which has a SIP trunk to a Cisco IOS gateway. My SCCP phones are connected
to a Callmanager server, which has an H323 connection to the same Cisco IOS
gateway. I am trying to allow the phones to call each other.
SIP Phones -- Asterisk -- SIP/Cisco IOS Gateway/H323 -- Callmanager -- SCCP
Phones
Other options/suggestions are of course welcomed and appreciated.
Thanks in advance,
Mike
------------------------
Cisco Gateways can act as SIP User Agents (endpoints, basically).
I don't know that they would be able to translate from an inbound SIP
request to H323 well, as that would be a "Voip hairpin" - something the
routers couldn't do until the very latest 12.3 code. I've never tried this
code so I can't say it will work.
I'm assuming it'd look something like this:
Service Provider -> Network connection -> your gateway -> CallManager
In this case, with 12.3 code, you could make a VoIP Peer with a SIP session
target, and an H323 Voip Peer with CallManager as the target. As I said,
this is supposed to work in the very latest 12.3, I couldn't say if it does,
or how well it might work (my 12.3 experiences have all been very bad so
far).
________________________________
From: cisco-voip-bounces at puck.nether.net
<https://puck.nether.net/mailman/listinfo/cisco-voip> on behalf of medley
at mac.com <https://puck.nether.net/mailman/listinfo/cisco-voip>
Sent: Fri 4/2/2004 4:03 PM
To: cisco-voip at puck.nether.net
<https://puck.nether.net/mailman/listinfo/cisco-voip>
Subject: [cisco-voip] SIP Gateway and CCM
I know that CCM 3.3(x) doesn't support SIP natively; I'll have to wait for
CCM 4.0(x) for native SIP trunking.
For now, can I use an IOS gateway to translate between H323 and SIP? I'm
thinking CCM connects to an IOS H323 GW. The IOS H323 GW connects to a SIP
Gateway.
We are looking at connecting to another service provider that really wants
us to use SIP instead of H323 to connect to their gateways.
tm
________________________________________________
Tim Medley
Appia Communications
(231) 929-0970 x112
(704) 905-4604 cell
aim: macmedley01
medley at appiaservices.com
<https://puck.nether.net/mailman/listinfo/cisco-voip>
You can now call our Support Line 877-277-4297