I used this configuration to register a sip phone:
!--enable server registration voice service voip sip registrar server exit exit !-configure register voice register global mode cme source-address 172.xx.xx.xx port 5060 max-dn 3 max-pool 3 tftp-path flash: create profile exit !--config number voice register dn 1 number 344 allow watch name SIP-Client exit !--Config pool for sip phone voice register pool 1 id mac 0011.9566.7535 number 1 dn 1 username test password test codec g711ulaw
The sip client is correctly registred, it can call any internal ext and I can call it from internal ext, but I cannot call outside neither pstn and sip trunk.
Are you able to receive external calls (from PSTN or SIP Trunk) on this SIP Endpoint ?
voice service voip allow-connections h323 to h323 allow-connections h323 to sip allow-connections sip to h323 allow-connections sip to sip supplementary-service h450.12 sip bind control source-interface FastEthernet0/0 (or 172.xx.xx.xx interface IP) bind media source-interface FastEthernet0/0 registrar server expires max 3600 min 120
if still issue, enable below debugs and attach here (capture for both incoming and outgoing):
allow-connections h323 to sip allow-connections sip to h323 allow-connections sip to sip
Binding the interface wouldn't be a very good idea as it not only sources the SIP source address but also forces to listen for SIP invites only on that interface. If your SIP trunk is terminating on a different interface than the binded interface, it will drop the SIP packets
If the above does not work, then go with debugs that Arun has suggested.
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