[cisco-voip] How to make simultaneous calls

[Uthayakumar,Sasikumar [DBA]]

Hi,
            I'm using Cisco 2600 router and I'm able to make calls
between PC and Phone; using a SIP client.
But when I tried to make two simultaneous calls from tow user agents,
only one UA could establish connection and made call but the other one
was not able to connect to the router.
How to make simultaneous calls?
 
My config details are
 
voice-card 1
 codec complexity high
!
ip subnet-zero
!
 
!
ip multicast-routing
no ip dhcp-client network-discovery
isdn switch-type primary-net5
call rsvp-sync
voice rtp send-recv
!
voice class codec 100
 codec preference 1 g711alaw
!
!
!
!
!
!
!
controller E1 1/0
 framing NO-CRC4 
 clock source internal
 channel-group 5 timeslots 7
 pri-group timeslots 5,16
!
 
interface Ethernet0/0
 ip address 192.168.1.189 255.255.255.0
 ip mrm test-sender-receiver
 no ip mroute-cache
 full-duplex
 priority-group 15
!
interface Serial1/0:5
 no ip address
 no logging event link-status
!
interface Serial1/0:15
 no ip address
 no logging event link-status
 isdn switch-type primary-net5
 isdn incoming-voice voice
 no cdp enable
!
router rip
 network 0.0.0.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.86
no ip http server
!
!
!
!
voice-port 1/0:15
 no comfort-noise
!
dial-peer cor custom
!
!
!
dial-peer voice 501 voip
 application session
 incoming called-number [0-9]...T
 destination-pattern 9.........
 session protocol sipv2
 session target sip-server
 codec g711alaw
 no vad
!
dial-peer voice 800 pots
 application session
 destination-pattern [0-9]..T
 direct-inward-dial
 port 1/0:15
!
sip-ua 
 retry invite 4
 retry response 3
 retry bye 2
 retry cancel 2
 sip-server ipv4:192.168.1.86
!
!
line con 0
line aux 0
line vty 0 4
 password sip
 login
line vty 5 14
 password cisco
 login
line vty 15
 password cisco
 login
 modem autoconfigure discovery
!
no scheduler allocate
!
end
  Best Regards,
SASIKUMAR.U | Programmer Analyst 
Dexterity Business Analysts (P) Ltd | www.dexterity.in
<http://www.dexterity.in/> 
Phn off: +91 44 5229 0000 |Extn 1231|Fax: +91 44 5229 0099
 
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