Vodafone Vi (formerly Vodafone India) call forwarding failures usually come from missing +91 country code, Vi's 5G network handling USSD differently, or a prepaid plan that restricts forwarding. Here are 7 fixes in order of likelihood.
Last verified: June 2026
Quick Answer
Most Vi call forwarding failures: (1) missing +91 country code — use **67*+91XXXXXXXXXX# not **67*XXXXXXXXXX#, (2) USSD blocked on your plan — use MyVi app instead, (3) Vi 5G users — temporarily switch to 4G to set forwarding.
Missing +91, Vi 5G quirks, and plan restrictions are the three reasons most Vi forwarding setups fail.
The practical rule is simple: fix the carrier-side formatting problem first, then test the network path, and only then move on to app or support steps. That order saves time because most forwarding issues are not Katch issues at all — they are carrier activation issues.
Vi requires the full international format even when you are forwarding to another Indian mobile number. If you type only ten digits, Vi may still show a success pop-up, but the forwarding rule often never routes real calls. For missed calls, use **61*+91XXXXXXXXXX#. For busy calls, use **67*+91XXXXXXXXXX#. The easiest way to avoid silent failure is to copy the full number with +91, no spaces, then dial the code again from scratch.
USSD is still the fastest method, but Vi increasingly pushes users to app-based account controls. Open MyVi app → More → Settings → Call Settings → Call Forwarding and set the number there if dial codes keep failing. This is especially useful when you get inconsistent USSD confirmations on newer SIMs. Vi documents general support flows at vi.in/help, and that is the first official carrier source worth checking before you keep retrying codes.
Some Vi 5G users run into a weird mismatch: voice works, data works, but the code entry never sticks. That usually happens when the phone is trying to register the request over Vi's 5G voice handling. Go to Settings → Mobile Network → Preferred network type → 4G/LTE, then set forwarding again. After you test it successfully, you can switch back to 5G. This is a setup step, not a permanent downgrade.
If Vi already has an old forwarding rule saved, layering a new one on top can leave you with a partial configuration. Dial ##002# to cancel all forwarding, wait about 15 seconds, then re-enter the no-answer and busy rules one at a time. Start with **61*+91[number]#, then add **67*+91[number]#. That reset sequence matters because many forwarding problems are not activation failures at all; they are stale-rule conflicts.
Basic prepaid packs can behave differently from standard prepaid and postpaid plans. If you are on a very low-value recharge, conditional forwarding may be limited even when basic calling still works. Open MyVi app → My Plan → Features and check whether call management features are included. If you are under the ₹199 range, moving to a normal recharge such as ₹299+ is the safest troubleshooting step before blaming the phone.
Vi sometimes accepts the code on the network side but does not fully refresh the SIM session until the phone re-registers. After entering the codes, power the phone off, wait a few seconds, and turn it back on. Then verify with *#67# and run a real-world test instead of assuming the setup is live. This extra restart sounds basic, but on Vi it solves a surprising number of “activated but not working” cases.
If the number format, network mode, and app method all fail, the remaining issue is usually account-level. Call 199 from your Vi number or use vi.in/help to reach support. Ask them to confirm that conditional call forwarding is enabled on the SIM itself. Vi also publishes call-forwarding guidance at vi.in/support/call-forwarding, which is your second official carrier citation and the page support teams normally point users back to.
Use a second phone. Call your Vi number, let it ring unanswered for at least four rings, and do not touch the original phone. If the setup is correct, Katch AI should answer within roughly 5-8 seconds. After the caller finishes speaking, you should receive a text summary within about 30 seconds showing the caller's name, reason for calling, and urgency. Also run one busy-call test while you are already on another call so you confirm both **61* and **67* are working.
Katch uses Vi's no-answer forwarding with **61*+91[KATCH NUMBER]# and busy forwarding with **67*+91[KATCH NUMBER]#. Once Vi passes the missed call to Katch, the caller hears an AI assistant instead of dead air, leaves the reason for calling, and you get a clean text summary. For the full carrier-by-carrier setup flow, use /guides/call-forwarding-india. Vi's official call forwarding help at vi.in/support/call-forwarding is the best carrier reference to compare against your phone screen while you set it up.
Also see: Vodafone Vi call forwarding setup • All carriers guide • How to check forwarding
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