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SIP-Trunk with Cisco CUBE and LYNC

at
Level 1
Level 1

hello,

we should connect a LYNC-Server with a SIP-Provider. Therefore we use a Cisco CUBE 2951.(15.2.3T)

Calls outbound (From LYNC to SIP/PSTN) are ok

Calls inbound (From SIP/PSTN to LYNC) are ok

Calls Forwarded back to SIP/PSTN are not ok  (The call is successfull, that means signaling, rtp  is ok,

but the siganlling numbers in sip-header are not ok)

Detail:

The provider complains : Wrong A-number and no Diversion Header

                                     FROM should contain the number of the forwarder or a Diversion header must be added.

example :

A: +4989-111111 (SIP/PSTN)

B:+49711-123456 (LYNC)

C: +4989-222222 (SIP/PSTN)

B has a Call Forward all to C;

A calls B - B forwards the call to C

The call outgoing contains in the FROM-field <sip:+4989111111@....>

Any tips for configuriation the CUBE (especially with LYNC) ?

regards

alex

3 Replies 3

paolo bevilacqua
Hall of Fame
Hall of Fame

Post config under "voice service voip".

hi,

the config under voice service voip :

!

voice service voip

ip address trusted list

  ipv4 x.x.x.x

  ipv4 x.x.x.x

mode border-element license capacity 60

allow-connections sip to sip

no supplementary-service sip refer

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

sip

  bind control source-interface GigabitEthernet0/0

  bind media source-interface GigabitEthernet0/0

  session transport tcp

  header-passing

  error-passthru

  early-offer forced

  midcall-signaling passthru

!

best regards

alex

configure

voice service voip

no supplementary-service sip moved-temporarily

no supplementary-service sip refer