From: Church, Chuck (cchurch@netcogov.com)
Date: Thu Oct 13 2005 - 13:02:37 GMT-3
My initial reply was going to be setting up a GRE tunnel between the two
sites, assuming it's possible. That's probably the easiest thing to do.
MTU shouldn't be an issue, as most VoIP frames (setup and data) tend to
be pretty small.
Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch@netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Henry Dziewa
Sent: Thursday, October 13, 2005 11:46 AM
To: Hooman Parta; 'David Fuller'; ccielab@groupstudy.com
Subject: RE: VOICE on AS5300
But then on the other hand, if the ISP is blocking H.323,
who's to say they will not be blocking SIP, as both might
be as important to them. What you really need to do is to
investigate a bit why exactly they blocked it in the first place
and if no solution on the other channels is possible all your
technical solutions might end up being just temporary.
There are some creative ways to go about the technical solutions,
tunneling comes to mind, shifting ports being used, etc.
But in the end, if the ISP has it really bad for you, workarounds
like these could prove of little help to you.
Good luck.
> Yes as SIP use 5060 as port number:
>
> voice service voip
> h323
> sip
>
> dial-peer voice 2 voip
> huntstop
> destination-pattern 92T
> session target ipv4:204.145.230.234
> session protocol sipv2
> no vad
>
>
> Do not forget to have the setting for SIP on the other end.
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> David Fuller
> Sent: Thursday, October 13, 2005 9:48 AM
> To: ccielab@groupstudy.com
> Subject: OT: VOICE on AS5300
>
> Hi guys
>
> Calling voice guys! We have an issue as follows:
>
> We have a soft switch that sends voice calls to the AS5300 on one end
and
> the AS5300 sends this via IP over the internet, terminating at a GSM
gateway
> in the other country. GSM receives calls via IP and has SIMs that it
can use
> to route the calls to in country operators.
>
> The problem is ISPs have blocked port 1720 used by H323. Since all the
calls
> were going via H323, all voice calls have stopped working. We want to
be
> able to route the calls out from AS5300 over a port other than 1720.
>
> Would SIP do the trick? What config changes would be needed?
>
> Thanks for your help
>
> Dave
>
> Here is the config:
>
>
>
> AS5300-1#show run
> Building configuration...
>
>
>
> Current configuration : 2000 bytes
> !
> version 12.3
> service timestamps debug datetime msec
> service timestamps log datetime msec
> service password-encryption
> !
> hostname AS5300-1
> !
> boot-start-marker
> boot-end-marker
> !
> enable secret <REMOVED>
>
> enable password < REMOVED>
>
> !
> !
> resource-pool disable
> !
> syscon address 218.39.25.203 d1g1t0ooo
> syscon shelf-id 0
> no aaa new-model
> ip subnet-zero
> !
> !
> isdn switch-type primary-net5
> !
> voice call send-alert
> voice rtp send-recv
> !
> voice service voip
> h323
>
> !
> controller E1 0
> pri-group timeslots 1-31
> !
> controller E1 1
> pri-group timeslots 1-31
> !
> controller E1 2
> framing NO-CRC4
> pri-group timeslots 1-31
> !
> controller E1 3
> framing NO-CRC4
> pri-group timeslots 1-31
> !
> interface Ethernet0
> no ip address
> shutdown
> !
> interface Serial0:15
> no ip address
> isdn switch-type primary-net5
> isdn protocol-emulate network
> isdn incoming-voice modem
> isdn send-alerting
> isdn disconnect-cause 34
> isdn sending-complete
> no cdp enable
> !
> interface Serial1:15
> no ip address
> isdn switch-type primary-net5
> no cdp enable
> !
> interface Serial2:15
> no ip address
> isdn switch-type primary-net5
> no cdp enable
> !
> interface Serial3:15
> no ip address
> isdn switch-type primary-net5
> no cdp enable
> !
> interface FastEthernet0
> ip address 218.39.25.202 255.255.255.248 duplex auto speed auto
> h323-gateway voip interface !
> ip classless
> ip route 0.0.0.0 0.0.0.0 218.39.25.206
> no ip http server!
> dialer-list 1 protocol ip permit
> !
> voice-port 0:D
> !
> voice-port 1:D
> !
> voice-port 2:D
> !
> voice-port 3:D
>
> !
> dial-peer voice 1 pots
> incoming called-number .
> direct-inward-dial
> port 0:D
> !
> dial-peer voice 2 voip
> huntstop
> destination-pattern 92T
> session target ipv4:204.145.230.234
> no vad
> !
> num-exp 001 1
> num-exp 002 2
> num-exp 003 3
> num-exp 004 4
> num-exp 005 5
> num-exp 006 6
> num-exp 007 7
> num-exp 008 8
> num-exp 009 9
> gateway
> !
> !
> line con 0
> logging synchronous
> line aux 0
> line vty 0 4
> password <REMOVED>
>
> 6
> login
> !
> scheduler interval 1000
> end
>
>
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